Home / 12,929,902.92-19,394,951.58-5,739,503.76

Finding the Fourth Proportional to 12,929,902.92, 19,394,951.58 and 5,739,503.76

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Solution

The fourth proportional to 12,929,902.92, 19,394,951.58 and 5,739,503.76 is: 8,609,298.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,929,902.92 : 19,394,951.58 = 5,739,503.76 : x
  2. Step 2: Convert to fraction form
    12,929,902.92/19,394,951.58 = 5,739,503.76/x
  3. Step 3: Cross multiply
    12,929,902.92x = 19,394,951.58 × 5,739,503.76
  4. Step 4: Simplify right side
    12,929,902.92x = 111,317,397,518,427.92
  5. Step 5: Solve for x
    x = 111,317,397,518,427.92/12,929,902.92
  6. Step 6: Final answer
    x = 8,609,298.79

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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.