Home / 91,390,819.14-137,081,182.75-66,823,920.95

Finding the Fourth Proportional to 91,390,819.14, 137,081,182.75 and 66,823,920.95

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Solution

The fourth proportional to 91,390,819.14, 137,081,182.75 and 66,823,920.95 is: 100,232,191.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,390,819.14 : 137,081,182.75 = 66,823,920.95 : x
  2. Step 2: Convert to fraction form
    91,390,819.14/137,081,182.75 = 66,823,920.95/x
  3. Step 3: Cross multiply
    91,390,819.14x = 137,081,182.75 × 66,823,920.95
  4. Step 4: Simplify right side
    91,390,819.14x = 9,160,302,118,966,038
  5. Step 5: Solve for x
    x = 9,160,302,118,966,038/91,390,819.14
  6. Step 6: Final answer
    x = 100,232,191.87

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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.