Home / 462,981,703.28-638,915,450.46-251,288,609.90

Finding the Fourth Proportional to 462,981,703.28, 638,915,450.46 and 251,288,609.90

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Solution

The fourth proportional to 462,981,703.28, 638,915,450.46 and 251,288,609.90 is: 346,778,661.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,981,703.28 : 638,915,450.46 = 251,288,609.90 : x
  2. Step 2: Convert to fraction form
    462,981,703.28/638,915,450.46 = 251,288,609.90/x
  3. Step 3: Cross multiply
    462,981,703.28x = 638,915,450.46 × 251,288,609.90
  4. Step 4: Simplify right side
    462,981,703.28x = 160,552,175,389,725,728
  5. Step 5: Solve for x
    x = 160,552,175,389,725,728/462,981,703.28
  6. Step 6: Final answer
    x = 346,778,661.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.