Home / 328,974,665.55-493,458,192.36-79,981,335.69

Finding the Fourth Proportional to 328,974,665.55, 493,458,192.36 and 79,981,335.69

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Solution

The fourth proportional to 328,974,665.55, 493,458,192.36 and 79,981,335.69 is: 119,971,078.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,974,665.55 : 493,458,192.36 = 79,981,335.69 : x
  2. Step 2: Convert to fraction form
    328,974,665.55/493,458,192.36 = 79,981,335.69/x
  3. Step 3: Cross multiply
    328,974,665.55x = 493,458,192.36 × 79,981,335.69
  4. Step 4: Simplify right side
    328,974,665.55x = 39,467,445,332,125,752
  5. Step 5: Solve for x
    x = 39,467,445,332,125,752/328,974,665.55
  6. Step 6: Final answer
    x = 119,971,078.22

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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.