Home / 142,539,646.92-196,704,712.76-77,349,550.92

Finding the Fourth Proportional to 142,539,646.92, 196,704,712.76 and 77,349,550.92

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Solution

The fourth proportional to 142,539,646.92, 196,704,712.76 and 77,349,550.92 is: 106,742,380.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,539,646.92 : 196,704,712.76 = 77,349,550.92 : x
  2. Step 2: Convert to fraction form
    142,539,646.92/196,704,712.76 = 77,349,550.92/x
  3. Step 3: Cross multiply
    142,539,646.92x = 196,704,712.76 × 77,349,550.92
  4. Step 4: Simplify right side
    142,539,646.92x = 15,215,021,195,833,594
  5. Step 5: Solve for x
    x = 15,215,021,195,833,594/142,539,646.92
  6. Step 6: Final answer
    x = 106,742,380.28

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Double scale
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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.