Home / 462,981,771.31-638,915,544.15-251,288,677.93

Finding the Fourth Proportional to 462,981,771.31, 638,915,544.15 and 251,288,677.93

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Solution

The fourth proportional to 462,981,771.31, 638,915,544.15 and 251,288,677.93 is: 346,778,755.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,981,771.31 : 638,915,544.15 = 251,288,677.93 : x
  2. Step 2: Convert to fraction form
    462,981,771.31/638,915,544.15 = 251,288,677.93/x
  3. Step 3: Cross multiply
    462,981,771.31x = 638,915,544.15 × 251,288,677.93
  4. Step 4: Simplify right side
    462,981,771.31x = 160,552,242,398,380,032
  5. Step 5: Solve for x
    x = 160,552,242,398,380,032/462,981,771.31
  6. Step 6: Final answer
    x = 346,778,755.34

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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.