Home / 90,888,609.60-125,427,278.52-49,636,715.76

Finding the Fourth Proportional to 90,888,609.60, 125,427,278.52 and 49,636,715.76

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Solution

The fourth proportional to 90,888,609.60, 125,427,278.52 and 49,636,715.76 is: 68,499,212.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,888,609.60 : 125,427,278.52 = 49,636,715.76 : x
  2. Step 2: Convert to fraction form
    90,888,609.60/125,427,278.52 = 49,636,715.76/x
  3. Step 3: Cross multiply
    90,888,609.60x = 125,427,278.52 × 49,636,715.76
  4. Step 4: Simplify right side
    90,888,609.60x = 6,225,798,172,447,593
  5. Step 5: Solve for x
    x = 6,225,798,172,447,593/90,888,609.60
  6. Step 6: Final answer
    x = 68,499,212.39

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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.