Home / 10,921,057.70-16,405,206.15-7,732,411.70

Finding the Fourth Proportional to 10,921,057.70, 16,405,206.15 and 7,732,411.70

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Solution

The fourth proportional to 10,921,057.70, 16,405,206.15 and 7,732,411.70 is: 11,615,340.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,921,057.70 : 16,405,206.15 = 7,732,411.70 : x
  2. Step 2: Convert to fraction form
    10,921,057.70/16,405,206.15 = 7,732,411.70/x
  3. Step 3: Cross multiply
    10,921,057.70x = 16,405,206.15 × 7,732,411.70
  4. Step 4: Simplify right side
    10,921,057.70x = 126,851,807,975,171.95
  5. Step 5: Solve for x
    x = 126,851,807,975,171.95/10,921,057.70
  6. Step 6: Final answer
    x = 11,615,340.88

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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.