Home / 21,004,124.10-31,443,200.55-12,480,072.90

Finding the Fourth Proportional to 21,004,124.10, 31,443,200.55 and 12,480,072.90

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Solution

The fourth proportional to 21,004,124.10, 31,443,200.55 and 12,480,072.90 is: 18,682,685.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,004,124.10 : 31,443,200.55 = 12,480,072.90 : x
  2. Step 2: Convert to fraction form
    21,004,124.10/31,443,200.55 = 12,480,072.90/x
  3. Step 3: Cross multiply
    21,004,124.10x = 31,443,200.55 × 12,480,072.90
  4. Step 4: Simplify right side
    21,004,124.10x = 392,413,435,073,320.12
  5. Step 5: Solve for x
    x = 392,413,435,073,320.12/21,004,124.10
  6. Step 6: Final answer
    x = 18,682,685.04

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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.