Home / 21,120,778.92-29,159,838.90-14,516,738.76

Finding the Fourth Proportional to 21,120,778.92, 29,159,838.90 and 14,516,738.76

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Solution

The fourth proportional to 21,120,778.92, 29,159,838.90 and 14,516,738.76 is: 20,042,147.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,120,778.92 : 29,159,838.90 = 14,516,738.76 : x
  2. Step 2: Convert to fraction form
    21,120,778.92/29,159,838.90 = 14,516,738.76/x
  3. Step 3: Cross multiply
    21,120,778.92x = 29,159,838.90 × 14,516,738.76
  4. Step 4: Simplify right side
    21,120,778.92x = 423,305,763,594,985.75
  5. Step 5: Solve for x
    x = 423,305,763,594,985.75/21,120,778.92
  6. Step 6: Final answer
    x = 20,042,147.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.