Home / 442,153,390.74-662,981,218.72-146,890,438.43

Finding the Fourth Proportional to 442,153,390.74, 662,981,218.72 and 146,890,438.43

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Solution

The fourth proportional to 442,153,390.74, 662,981,218.72 and 146,890,438.43 is: 220,252,979.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,153,390.74 : 662,981,218.72 = 146,890,438.43 : x
  2. Step 2: Convert to fraction form
    442,153,390.74/662,981,218.72 = 146,890,438.43/x
  3. Step 3: Cross multiply
    442,153,390.74x = 662,981,218.72 × 146,890,438.43
  4. Step 4: Simplify right side
    442,153,390.74x = 97,385,601,888,524,720
  5. Step 5: Solve for x
    x = 97,385,601,888,524,720/442,153,390.74
  6. Step 6: Final answer
    x = 220,252,979.91

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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.