Home / 221,001,439.20-331,502,158.80-75,439,749.30

Finding the Fourth Proportional to 221,001,439.20, 331,502,158.80 and 75,439,749.30

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Solution

The fourth proportional to 221,001,439.20, 331,502,158.80 and 75,439,749.30 is: 113,159,623.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,001,439.20 : 331,502,158.80 = 75,439,749.30 : x
  2. Step 2: Convert to fraction form
    221,001,439.20/331,502,158.80 = 75,439,749.30/x
  3. Step 3: Cross multiply
    221,001,439.20x = 331,502,158.80 × 75,439,749.30
  4. Step 4: Simplify right side
    221,001,439.20x = 25,008,439,752,280,788
  5. Step 5: Solve for x
    x = 25,008,439,752,280,788/221,001,439.20
  6. Step 6: Final answer
    x = 113,159,623.95

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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.