Home / 261,319,432.86-391,979,078.82-97,569,959.00

Finding the Fourth Proportional to 261,319,432.86, 391,979,078.82 and 97,569,959.00

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Solution

The fourth proportional to 261,319,432.86, 391,979,078.82 and 97,569,959.00 is: 146,354,912.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,319,432.86 : 391,979,078.82 = 97,569,959.00 : x
  2. Step 2: Convert to fraction form
    261,319,432.86/391,979,078.82 = 97,569,959.00/x
  3. Step 3: Cross multiply
    261,319,432.86x = 391,979,078.82 × 97,569,959.00
  4. Step 4: Simplify right side
    261,319,432.86x = 38,245,382,647,365,272
  5. Step 5: Solve for x
    x = 38,245,382,647,365,272/261,319,432.86
  6. Step 6: Final answer
    x = 146,354,912.18

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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.