Home / 165,215,475.91-228,001,657-90,877,951.70

Finding the Fourth Proportional to 165,215,475.91, 228,001,657 and 90,877,951.70

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Solution

The fourth proportional to 165,215,475.91, 228,001,657 and 90,877,951.70 is: 125,413,938.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,215,475.91 : 228,001,657 = 90,877,951.70 : x
  2. Step 2: Convert to fraction form
    165,215,475.91/228,001,657 = 90,877,951.70/x
  3. Step 3: Cross multiply
    165,215,475.91x = 228,001,657 × 90,877,951.70
  4. Step 4: Simplify right side
    165,215,475.91x = 20,720,323,572,365,968
  5. Step 5: Solve for x
    x = 20,720,323,572,365,968/165,215,475.91
  6. Step 6: Final answer
    x = 125,413,938.73

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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.