Home / 80,411,705.28-120,668,572.56-34,353,920.76

Finding the Fourth Proportional to 80,411,705.28, 120,668,572.56 and 34,353,920.76

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Solution

The fourth proportional to 80,411,705.28, 120,668,572.56 and 34,353,920.76 is: 51,552,675.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,411,705.28 : 120,668,572.56 = 34,353,920.76 : x
  2. Step 2: Convert to fraction form
    80,411,705.28/120,668,572.56 = 34,353,920.76/x
  3. Step 3: Cross multiply
    80,411,705.28x = 120,668,572.56 × 34,353,920.76
  4. Step 4: Simplify right side
    80,411,705.28x = 4,145,438,579,948,550
  5. Step 5: Solve for x
    x = 4,145,438,579,948,550/80,411,705.28
  6. Step 6: Final answer
    x = 51,552,675.89

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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.