Home / 139,643,255.13-192,700,569.68-76,918,002.79

Finding the Fourth Proportional to 139,643,255.13, 192,700,569.68 and 76,918,002.79

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Solution

The fourth proportional to 139,643,255.13, 192,700,569.68 and 76,918,002.79 is: 106,142,920.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,643,255.13 : 192,700,569.68 = 76,918,002.79 : x
  2. Step 2: Convert to fraction form
    139,643,255.13/192,700,569.68 = 76,918,002.79/x
  3. Step 3: Cross multiply
    139,643,255.13x = 192,700,569.68 × 76,918,002.79
  4. Step 4: Simplify right side
    139,643,255.13x = 14,822,142,955,317,326
  5. Step 5: Solve for x
    x = 14,822,142,955,317,326/139,643,255.13
  6. Step 6: Final answer
    x = 106,142,920.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.