Home / 125,428,534.20-188,142,801.30-68,032,906.20

Finding the Fourth Proportional to 125,428,534.20, 188,142,801.30 and 68,032,906.20

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Solution

The fourth proportional to 125,428,534.20, 188,142,801.30 and 68,032,906.20 is: 102,049,359.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,428,534.20 : 188,142,801.30 = 68,032,906.20 : x
  2. Step 2: Convert to fraction form
    125,428,534.20/188,142,801.30 = 68,032,906.20/x
  3. Step 3: Cross multiply
    125,428,534.20x = 188,142,801.30 × 68,032,906.20
  4. Step 4: Simplify right side
    125,428,534.20x = 12,799,901,553,048,140
  5. Step 5: Solve for x
    x = 12,799,901,553,048,140/125,428,534.20
  6. Step 6: Final answer
    x = 102,049,359.30

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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.