Home / 1,287,446,094.84-1,776,554,175.39-722,820,700.98

Finding the Fourth Proportional to 1,287,446,094.84, 1,776,554,175.39 and 722,820,700.98

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Solution

The fourth proportional to 1,287,446,094.84, 1,776,554,175.39 and 722,820,700.98 is: 997,424,388.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,446,094.84 : 1,776,554,175.39 = 722,820,700.98 : x
  2. Step 2: Convert to fraction form
    1,287,446,094.84/1,776,554,175.39 = 722,820,700.98/x
  3. Step 3: Cross multiply
    1,287,446,094.84x = 1,776,554,175.39 × 722,820,700.98
  4. Step 4: Simplify right side
    1,287,446,094.84x = 1,284,130,134,384,345,856
  5. Step 5: Solve for x
    x = 1,284,130,134,384,345,856/1,287,446,094.84
  6. Step 6: Final answer
    x = 997,424,388.90

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1.5x scale

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.