Home / 72,439,343.12-108,647,203.04-21,309,404.24

Finding the Fourth Proportional to 72,439,343.12, 108,647,203.04 and 21,309,404.24

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Solution

The fourth proportional to 72,439,343.12, 108,647,203.04 and 21,309,404.24 is: 31,960,631.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,439,343.12 : 108,647,203.04 = 21,309,404.24 : x
  2. Step 2: Convert to fraction form
    72,439,343.12/108,647,203.04 = 21,309,404.24/x
  3. Step 3: Cross multiply
    72,439,343.12x = 108,647,203.04 × 21,309,404.24
  4. Step 4: Simplify right side
    72,439,343.12x = 2,315,207,169,124,717
  5. Step 5: Solve for x
    x = 2,315,207,169,124,717/72,439,343.12
  6. Step 6: Final answer
    x = 31,960,631.74

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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.