Home / 511,534,188.92-705,888,196.97-288,502,540.17

Finding the Fourth Proportional to 511,534,188.92, 705,888,196.97 and 288,502,540.17

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Solution

The fourth proportional to 511,534,188.92, 705,888,196.97 and 288,502,540.17 is: 398,117,158.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,534,188.92 : 705,888,196.97 = 288,502,540.17 : x
  2. Step 2: Convert to fraction form
    511,534,188.92/705,888,196.97 = 288,502,540.17/x
  3. Step 3: Cross multiply
    511,534,188.92x = 705,888,196.97 × 288,502,540.17
  4. Step 4: Simplify right side
    511,534,188.92x = 203,650,537,901,866,304
  5. Step 5: Solve for x
    x = 203,650,537,901,866,304/511,534,188.92
  6. Step 6: Final answer
    x = 398,117,158.76

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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.