Home / 10,921,085.70-16,405,248.15-7,732,439.70

Finding the Fourth Proportional to 10,921,085.70, 16,405,248.15 and 7,732,439.70

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Solution

The fourth proportional to 10,921,085.70, 16,405,248.15 and 7,732,439.70 is: 11,615,382.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,921,085.70 : 16,405,248.15 = 7,732,439.70 : x
  2. Step 2: Convert to fraction form
    10,921,085.70/16,405,248.15 = 7,732,439.70/x
  3. Step 3: Cross multiply
    10,921,085.70x = 16,405,248.15 × 7,732,439.70
  4. Step 4: Simplify right side
    10,921,085.70x = 126,852,592,083,411.56
  5. Step 5: Solve for x
    x = 126,852,592,083,411.56/10,921,085.70
  6. Step 6: Final answer
    x = 11,615,382.90

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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.