Home / 141,252,637.20-211,766,981.40-77,427,229.20

Finding the Fourth Proportional to 141,252,637.20, 211,766,981.40 and 77,427,229.20

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Solution

The fourth proportional to 141,252,637.20, 211,766,981.40 and 77,427,229.20 is: 116,079,465.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,252,637.20 : 211,766,981.40 = 77,427,229.20 : x
  2. Step 2: Convert to fraction form
    141,252,637.20/211,766,981.40 = 77,427,229.20/x
  3. Step 3: Cross multiply
    141,252,637.20x = 211,766,981.40 × 77,427,229.20
  4. Step 4: Simplify right side
    141,252,637.20x = 16,396,530,605,849,938
  5. Step 5: Solve for x
    x = 16,396,530,605,849,938/141,252,637.20
  6. Step 6: Final answer
    x = 116,079,465.35

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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.