Home / 91,766,547.76-126,640,625.12-64,991,845.92

Finding the Fourth Proportional to 91,766,547.76, 126,640,625.12 and 64,991,845.92

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Solution

The fourth proportional to 91,766,547.76, 126,640,625.12 and 64,991,845.92 is: 89,690,722.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,766,547.76 : 126,640,625.12 = 64,991,845.92 : x
  2. Step 2: Convert to fraction form
    91,766,547.76/126,640,625.12 = 64,991,845.92/x
  3. Step 3: Cross multiply
    91,766,547.76x = 126,640,625.12 × 64,991,845.92
  4. Step 4: Simplify right side
    91,766,547.76x = 8,230,607,995,011,522
  5. Step 5: Solve for x
    x = 8,230,607,995,011,522/91,766,547.76
  6. Step 6: Final answer
    x = 89,690,722.77

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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.