Home / 125,207,985.60-187,811,978.40-34,331,428.80

Finding the Fourth Proportional to 125,207,985.60, 187,811,978.40 and 34,331,428.80

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Solution

The fourth proportional to 125,207,985.60, 187,811,978.40 and 34,331,428.80 is: 51,497,143.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,207,985.60 : 187,811,978.40 = 34,331,428.80 : x
  2. Step 2: Convert to fraction form
    125,207,985.60/187,811,978.40 = 34,331,428.80/x
  3. Step 3: Cross multiply
    125,207,985.60x = 187,811,978.40 × 34,331,428.80
  4. Step 4: Simplify right side
    125,207,985.60x = 6,447,853,564,226,738
  5. Step 5: Solve for x
    x = 6,447,853,564,226,738/125,207,985.60
  6. Step 6: Final answer
    x = 51,497,143.20

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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.