Home / 100,585,129.62-138,808,728.36-60,892,134.78

Finding the Fourth Proportional to 100,585,129.62, 138,808,728.36 and 60,892,134.78

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Solution

The fourth proportional to 100,585,129.62, 138,808,728.36 and 60,892,134.78 is: 84,031,902.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,585,129.62 : 138,808,728.36 = 60,892,134.78 : x
  2. Step 2: Convert to fraction form
    100,585,129.62/138,808,728.36 = 60,892,134.78/x
  3. Step 3: Cross multiply
    100,585,129.62x = 138,808,728.36 × 60,892,134.78
  4. Step 4: Simplify right side
    100,585,129.62x = 8,452,359,795,937,529
  5. Step 5: Solve for x
    x = 8,452,359,795,937,529/100,585,129.62
  6. Step 6: Final answer
    x = 84,031,902.41

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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.