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Finding the Fourth Proportional to 284,453,730.54, 426,680,760.65 and 79,981,805.79

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Solution

The fourth proportional to 284,453,730.54, 426,680,760.65 and 79,981,805.79 is: 119,972,755.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,453,730.54 : 426,680,760.65 = 79,981,805.79 : x
  2. Step 2: Convert to fraction form
    284,453,730.54/426,680,760.65 = 79,981,805.79/x
  3. Step 3: Cross multiply
    284,453,730.54x = 426,680,760.65 × 79,981,805.79
  4. Step 4: Simplify right side
    284,453,730.54x = 34,126,697,732,237,868
  5. Step 5: Solve for x
    x = 34,126,697,732,237,868/284,453,730.54
  6. Step 6: Final answer
    x = 119,972,755.03

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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.