Home / 189,720,479.10-284,687,006.85-80,527,068.30

Finding the Fourth Proportional to 189,720,479.10, 284,687,006.85 and 80,527,068.30

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Solution

The fourth proportional to 189,720,479.10, 284,687,006.85 and 80,527,068.30 is: 120,835,716.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,720,479.10 : 284,687,006.85 = 80,527,068.30 : x
  2. Step 2: Convert to fraction form
    189,720,479.10/284,687,006.85 = 80,527,068.30/x
  3. Step 3: Cross multiply
    189,720,479.10x = 284,687,006.85 × 80,527,068.30
  4. Step 4: Simplify right side
    189,720,479.10x = 22,925,010,044,732,520
  5. Step 5: Solve for x
    x = 22,925,010,044,732,520/189,720,479.10
  6. Step 6: Final answer
    x = 120,835,716.59

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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.