Home / 939,234,765.02-1,296,226,110.39-521,628,691.10

Finding the Fourth Proportional to 939,234,765.02, 1,296,226,110.39 and 521,628,691.10

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Solution

The fourth proportional to 939,234,765.02, 1,296,226,110.39 and 521,628,691.10 is: 719,893,209.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,234,765.02 : 1,296,226,110.39 = 521,628,691.10 : x
  2. Step 2: Convert to fraction form
    939,234,765.02/1,296,226,110.39 = 521,628,691.10/x
  3. Step 3: Cross multiply
    939,234,765.02x = 1,296,226,110.39 × 521,628,691.10
  4. Step 4: Simplify right side
    939,234,765.02x = 676,148,729,332,379,904
  5. Step 5: Solve for x
    x = 676,148,729,332,379,904/939,234,765.02
  6. Step 6: Final answer
    x = 719,893,209.36

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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.