Home / 198,976,162.15-274,587,672.50-115,360,542.55

Finding the Fourth Proportional to 198,976,162.15, 274,587,672.50 and 115,360,542.55

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Solution

The fourth proportional to 198,976,162.15, 274,587,672.50 and 115,360,542.55 is: 159,197,878.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,976,162.15 : 274,587,672.50 = 115,360,542.55 : x
  2. Step 2: Convert to fraction form
    198,976,162.15/274,587,672.50 = 115,360,542.55/x
  3. Step 3: Cross multiply
    198,976,162.15x = 274,587,672.50 × 115,360,542.55
  4. Step 4: Simplify right side
    198,976,162.15x = 31,676,582,877,141,716
  5. Step 5: Solve for x
    x = 31,676,582,877,141,716/198,976,162.15
  6. Step 6: Final answer
    x = 159,197,878.45

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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.