Home / 487,425,711.68-731,140,278.24-123,920,106.56

Finding the Fourth Proportional to 487,425,711.68, 731,140,278.24 and 123,920,106.56

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Solution

The fourth proportional to 487,425,711.68, 731,140,278.24 and 123,920,106.56 is: 185,880,594.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,425,711.68 : 731,140,278.24 = 123,920,106.56 : x
  2. Step 2: Convert to fraction form
    487,425,711.68/731,140,278.24 = 123,920,106.56/x
  3. Step 3: Cross multiply
    487,425,711.68x = 731,140,278.24 × 123,920,106.56
  4. Step 4: Simplify right side
    487,425,711.68x = 90,602,981,189,808,848
  5. Step 5: Solve for x
    x = 90,602,981,189,808,848/487,425,711.68
  6. Step 6: Final answer
    x = 185,880,594.76

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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.