Home / 1,379,283,460.80-2,069,932,960.80-971,136,772.80

Finding the Fourth Proportional to 1,379,283,460.80, 2,069,932,960.80 and 971,136,772.80

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Solution

The fourth proportional to 1,379,283,460.80, 2,069,932,960.80 and 971,136,772.80 is: 1,457,414,717.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,283,460.80 : 2,069,932,960.80 = 971,136,772.80 : x
  2. Step 2: Convert to fraction form
    1,379,283,460.80/2,069,932,960.80 = 971,136,772.80/x
  3. Step 3: Cross multiply
    1,379,283,460.80x = 2,069,932,960.80 × 971,136,772.80
  4. Step 4: Simplify right side
    1,379,283,460.80x = 2,010,188,015,463,660,800
  5. Step 5: Solve for x
    x = 2,010,188,015,463,660,800/1,379,283,460.80
  6. Step 6: Final answer
    x = 1,457,414,717.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.