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Finding the Fourth Proportional to 817,996,984.90, 1,226,995,477.35 and 635,254,764.10

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Solution

The fourth proportional to 817,996,984.90, 1,226,995,477.35 and 635,254,764.10 is: 952,882,146.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,996,984.90 : 1,226,995,477.35 = 635,254,764.10 : x
  2. Step 2: Convert to fraction form
    817,996,984.90/1,226,995,477.35 = 635,254,764.10/x
  3. Step 3: Cross multiply
    817,996,984.90x = 1,226,995,477.35 × 635,254,764.10
  4. Step 4: Simplify right side
    817,996,984.90x = 779,454,722,515,741,056
  5. Step 5: Solve for x
    x = 779,454,722,515,741,056/817,996,984.90
  6. Step 6: Final answer
    x = 952,882,146.15

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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.