Home / 25,782,126-38,672,627.20-12,127,703.92

Finding the Fourth Proportional to 25,782,126, 38,672,627.20 and 12,127,703.92

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Solution

The fourth proportional to 25,782,126, 38,672,627.20 and 12,127,703.92 is: 18,191,291.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,782,126 : 38,672,627.20 = 12,127,703.92 : x
  2. Step 2: Convert to fraction form
    25,782,126/38,672,627.20 = 12,127,703.92/x
  3. Step 3: Cross multiply
    25,782,126x = 38,672,627.20 × 12,127,703.92
  4. Step 4: Simplify right side
    25,782,126x = 469,010,172,490,138.69
  5. Step 5: Solve for x
    x = 469,010,172,490,138.69/25,782,126
  6. Step 6: Final answer
    x = 18,191,291.61

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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.