Home / 472,645,456.38-651,644,435.76-387,559,084.31

Finding the Fourth Proportional to 472,645,456.38, 651,644,435.76 and 387,559,084.31

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Solution

The fourth proportional to 472,645,456.38, 651,644,435.76 and 387,559,084.31 is: 534,334,388.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,645,456.38 : 651,644,435.76 = 387,559,084.31 : x
  2. Step 2: Convert to fraction form
    472,645,456.38/651,644,435.76 = 387,559,084.31/x
  3. Step 3: Cross multiply
    472,645,456.38x = 651,644,435.76 × 387,559,084.31
  4. Step 4: Simplify right side
    472,645,456.38x = 252,550,720,816,584,320
  5. Step 5: Solve for x
    x = 252,550,720,816,584,320/472,645,456.38
  6. Step 6: Final answer
    x = 534,334,388.30

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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.