Home / 126,041,143.20-189,061,715.52-39,840,089.28

Finding the Fourth Proportional to 126,041,143.20, 189,061,715.52 and 39,840,089.28

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Solution

The fourth proportional to 126,041,143.20, 189,061,715.52 and 39,840,089.28 is: 59,760,134.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,041,143.20 : 189,061,715.52 = 39,840,089.28 : x
  2. Step 2: Convert to fraction form
    126,041,143.20/189,061,715.52 = 39,840,089.28/x
  3. Step 3: Cross multiply
    126,041,143.20x = 189,061,715.52 × 39,840,089.28
  4. Step 4: Simplify right side
    126,041,143.20x = 7,532,235,625,746,762
  5. Step 5: Solve for x
    x = 7,532,235,625,746,762/126,041,143.20
  6. Step 6: Final answer
    x = 59,760,134.15

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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.