Home / 20,837,989.29-31,240,293.30-9,902,691.30

Finding the Fourth Proportional to 20,837,989.29, 31,240,293.30 and 9,902,691.30

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Solution

The fourth proportional to 20,837,989.29, 31,240,293.30 and 9,902,691.30 is: 14,846,105.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,837,989.29 : 31,240,293.30 = 9,902,691.30 : x
  2. Step 2: Convert to fraction form
    20,837,989.29/31,240,293.30 = 9,902,691.30/x
  3. Step 3: Cross multiply
    20,837,989.29x = 31,240,293.30 × 9,902,691.30
  4. Step 4: Simplify right side
    20,837,989.29x = 309,362,980,671,358.31
  5. Step 5: Solve for x
    x = 309,362,980,671,358.31/20,837,989.29
  6. Step 6: Final answer
    x = 14,846,105.18

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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.