Home / 215,744,089.60-323,616,134.40-72,136,921.60

Finding the Fourth Proportional to 215,744,089.60, 323,616,134.40 and 72,136,921.60

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Solution

The fourth proportional to 215,744,089.60, 323,616,134.40 and 72,136,921.60 is: 108,205,382.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,744,089.60 : 323,616,134.40 = 72,136,921.60 : x
  2. Step 2: Convert to fraction form
    215,744,089.60/323,616,134.40 = 72,136,921.60/x
  3. Step 3: Cross multiply
    215,744,089.60x = 323,616,134.40 × 72,136,921.60
  4. Step 4: Simplify right side
    215,744,089.60x = 23,344,671,715,707,860
  5. Step 5: Solve for x
    x = 23,344,671,715,707,860/215,744,089.60
  6. Step 6: Final answer
    x = 108,205,382.40

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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.