Home / 1,290,424,736,814.80-1,780,739,455,897.80-712,348,839,556.96

Finding the Fourth Proportional to 1,290,424,736,814.80, 1,780,739,455,897.80 and 712,348,839,556.96

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Solution

The fourth proportional to 1,290,424,736,814.80, 1,780,739,455,897.80 and 712,348,839,556.96 is: 983,015,629,484.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,424,736,814.80 : 1,780,739,455,897.80 = 712,348,839,556.96 : x
  2. Step 2: Convert to fraction form
    1,290,424,736,814.80/1,780,739,455,897.80 = 712,348,839,556.96/x
  3. Step 3: Cross multiply
    1,290,424,736,814.80x = 1,780,739,455,897.80 × 712,348,839,556.96
  4. Step 4: Simplify right side
    1,290,424,736,814.80x = 1,268,507,684,962,090,023,387,136
  5. Step 5: Solve for x
    x = 1,268,507,684,962,090,023,387,136/1,290,424,736,814.80
  6. Step 6: Final answer
    x = 983,015,629,484.28

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Find fourth proportional to 1,290,424,736,815.80, 1,780,739,455,899.18 and 712,348,839,557.96
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.