Home / 141,931,756.20-212,897,634.30-77,434,501.80

Finding the Fourth Proportional to 141,931,756.20, 212,897,634.30 and 77,434,501.80

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Solution

The fourth proportional to 141,931,756.20, 212,897,634.30 and 77,434,501.80 is: 116,151,752.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,931,756.20 : 212,897,634.30 = 77,434,501.80 : x
  2. Step 2: Convert to fraction form
    141,931,756.20/212,897,634.30 = 77,434,501.80/x
  3. Step 3: Cross multiply
    141,931,756.20x = 212,897,634.30 × 77,434,501.80
  4. Step 4: Simplify right side
    141,931,756.20x = 16,485,622,246,419,092
  5. Step 5: Solve for x
    x = 16,485,622,246,419,092/141,931,756.20
  6. Step 6: Final answer
    x = 116,151,752.70

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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.