Home / 115,505,565.78-173,141,763.75-72,405,036.39

Finding the Fourth Proportional to 115,505,565.78, 173,141,763.75 and 72,405,036.39

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Solution

The fourth proportional to 115,505,565.78, 173,141,763.75 and 72,405,036.39 is: 108,534,472.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,505,565.78 : 173,141,763.75 = 72,405,036.39 : x
  2. Step 2: Convert to fraction form
    115,505,565.78/173,141,763.75 = 72,405,036.39/x
  3. Step 3: Cross multiply
    115,505,565.78x = 173,141,763.75 × 72,405,036.39
  4. Step 4: Simplify right side
    115,505,565.78x = 12,536,335,704,947,532
  5. Step 5: Solve for x
    x = 12,536,335,704,947,532/115,505,565.78
  6. Step 6: Final answer
    x = 108,534,472.95

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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.