Home / 787,940,331.66-1,087,338,691.26-430,692,077.34

Finding the Fourth Proportional to 787,940,331.66, 1,087,338,691.26 and 430,692,077.34

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Solution

The fourth proportional to 787,940,331.66, 1,087,338,691.26 and 430,692,077.34 is: 594,344,699.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,940,331.66 : 1,087,338,691.26 = 430,692,077.34 : x
  2. Step 2: Convert to fraction form
    787,940,331.66/1,087,338,691.26 = 430,692,077.34/x
  3. Step 3: Cross multiply
    787,940,331.66x = 1,087,338,691.26 × 430,692,077.34
  4. Step 4: Simplify right side
    787,940,331.66x = 468,308,159,710,926,272
  5. Step 5: Solve for x
    x = 468,308,159,710,926,272/787,940,331.66
  6. Step 6: Final answer
    x = 594,344,699.58

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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.