Home / 18,120,933.72-25,006,892.04-9,972,171.72

Finding the Fourth Proportional to 18,120,933.72, 25,006,892.04 and 9,972,171.72

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Solution

The fourth proportional to 18,120,933.72, 25,006,892.04 and 9,972,171.72 is: 13,761,598.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,120,933.72 : 25,006,892.04 = 9,972,171.72 : x
  2. Step 2: Convert to fraction form
    18,120,933.72/25,006,892.04 = 9,972,171.72/x
  3. Step 3: Cross multiply
    18,120,933.72x = 25,006,892.04 × 9,972,171.72
  4. Step 4: Simplify right side
    18,120,933.72x = 249,373,021,606,381.12
  5. Step 5: Solve for x
    x = 249,373,021,606,381.12/18,120,933.72
  6. Step 6: Final answer
    x = 13,761,598.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.