Home / 10,609,780.80-15,914,671.20-7,955,572.80

Finding the Fourth Proportional to 10,609,780.80, 15,914,671.20 and 7,955,572.80

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Solution

The fourth proportional to 10,609,780.80, 15,914,671.20 and 7,955,572.80 is: 11,933,359.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,609,780.80 : 15,914,671.20 = 7,955,572.80 : x
  2. Step 2: Convert to fraction form
    10,609,780.80/15,914,671.20 = 7,955,572.80/x
  3. Step 3: Cross multiply
    10,609,780.80x = 15,914,671.20 × 7,955,572.80
  4. Step 4: Simplify right side
    10,609,780.80x = 126,610,325,319,663.34
  5. Step 5: Solve for x
    x = 126,610,325,319,663.34/10,609,780.80
  6. Step 6: Final answer
    x = 11,933,359.20

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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.