Home / 125,186,402.04-187,647,070.16-42,109,066.78

Finding the Fourth Proportional to 125,186,402.04, 187,647,070.16 and 42,109,066.78

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Solution

The fourth proportional to 125,186,402.04, 187,647,070.16 and 42,109,066.78 is: 63,119,019.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,186,402.04 : 187,647,070.16 = 42,109,066.78 : x
  2. Step 2: Convert to fraction form
    125,186,402.04/187,647,070.16 = 42,109,066.78/x
  3. Step 3: Cross multiply
    125,186,402.04x = 187,647,070.16 × 42,109,066.78
  4. Step 4: Simplify right side
    125,186,402.04x = 7,901,643,008,438,785
  5. Step 5: Solve for x
    x = 7,901,643,008,438,785/125,186,402.04
  6. Step 6: Final answer
    x = 63,119,019.95

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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.