Home / 72,587,613.84-108,902,678.22-21,470,993.88

Finding the Fourth Proportional to 72,587,613.84, 108,902,678.22 and 21,470,993.88

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Solution

The fourth proportional to 72,587,613.84, 108,902,678.22 and 21,470,993.88 is: 32,212,778.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,587,613.84 : 108,902,678.22 = 21,470,993.88 : x
  2. Step 2: Convert to fraction form
    72,587,613.84/108,902,678.22 = 21,470,993.88/x
  3. Step 3: Cross multiply
    72,587,613.84x = 108,902,678.22 × 21,470,993.88
  4. Step 4: Simplify right side
    72,587,613.84x = 2,338,248,737,577,229
  5. Step 5: Solve for x
    x = 2,338,248,737,577,229/72,587,613.84
  6. Step 6: Final answer
    x = 32,212,778.65

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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.