Home / 139,213,024.29-208,787,140.95-51,815,701.17

Finding the Fourth Proportional to 139,213,024.29, 208,787,140.95 and 51,815,701.17

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Solution

The fourth proportional to 139,213,024.29, 208,787,140.95 and 51,815,701.17 is: 77,711,494.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,213,024.29 : 208,787,140.95 = 51,815,701.17 : x
  2. Step 2: Convert to fraction form
    139,213,024.29/208,787,140.95 = 51,815,701.17/x
  3. Step 3: Cross multiply
    139,213,024.29x = 208,787,140.95 × 51,815,701.17
  4. Step 4: Simplify right side
    139,213,024.29x = 10,818,452,103,603,870
  5. Step 5: Solve for x
    x = 10,818,452,103,603,870/139,213,024.29
  6. Step 6: Final answer
    x = 77,711,494.01

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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.