Home / 19,723,600.70-29,585,401.05-12,921,155.90

Finding the Fourth Proportional to 19,723,600.70, 29,585,401.05 and 12,921,155.90

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Solution

The fourth proportional to 19,723,600.70, 29,585,401.05 and 12,921,155.90 is: 19,381,733.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,723,600.70 : 29,585,401.05 = 12,921,155.90 : x
  2. Step 2: Convert to fraction form
    19,723,600.70/29,585,401.05 = 12,921,155.90/x
  3. Step 3: Cross multiply
    19,723,600.70x = 29,585,401.05 × 12,921,155.90
  4. Step 4: Simplify right side
    19,723,600.70x = 382,277,579,331,073.69
  5. Step 5: Solve for x
    x = 382,277,579,331,073.69/19,723,600.70
  6. Step 6: Final answer
    x = 19,381,733.85

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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.