Home / 67,156,942.10-100,710,529.95-21,720,218.90

Finding the Fourth Proportional to 67,156,942.10, 100,710,529.95 and 21,720,218.90

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Solution

The fourth proportional to 67,156,942.10, 100,710,529.95 and 21,720,218.90 is: 32,572,280.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,156,942.10 : 100,710,529.95 = 21,720,218.90 : x
  2. Step 2: Convert to fraction form
    67,156,942.10/100,710,529.95 = 21,720,218.90/x
  3. Step 3: Cross multiply
    67,156,942.10x = 100,710,529.95 × 21,720,218.90
  4. Step 4: Simplify right side
    67,156,942.10x = 2,187,454,756,049,006
  5. Step 5: Solve for x
    x = 2,187,454,756,049,006/67,156,942.10
  6. Step 6: Final answer
    x = 32,572,280.51

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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.