Home / 10,361,389.70-15,514,090.95-8,121,901.70

Finding the Fourth Proportional to 10,361,389.70, 15,514,090.95 and 8,121,901.70

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Solution

The fourth proportional to 10,361,389.70, 15,514,090.95 and 8,121,901.70 is: 12,160,909.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,361,389.70 : 15,514,090.95 = 8,121,901.70 : x
  2. Step 2: Convert to fraction form
    10,361,389.70/15,514,090.95 = 8,121,901.70/x
  3. Step 3: Cross multiply
    10,361,389.70x = 15,514,090.95 × 8,121,901.70
  4. Step 4: Simplify right side
    10,361,389.70x = 126,003,921,660,759.61
  5. Step 5: Solve for x
    x = 126,003,921,660,759.61/10,361,389.70
  6. Step 6: Final answer
    x = 12,160,909.43

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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.