Home / 203,278,957.02-280,523,974.95-115,172,781.66

Finding the Fourth Proportional to 203,278,957.02, 280,523,974.95 and 115,172,781.66

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Solution

The fourth proportional to 203,278,957.02, 280,523,974.95 and 115,172,781.66 is: 158,937,880.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,278,957.02 : 280,523,974.95 = 115,172,781.66 : x
  2. Step 2: Convert to fraction form
    203,278,957.02/280,523,974.95 = 115,172,781.66/x
  3. Step 3: Cross multiply
    203,278,957.02x = 280,523,974.95 × 115,172,781.66
  4. Step 4: Simplify right side
    203,278,957.02x = 32,308,726,517,311,656
  5. Step 5: Solve for x
    x = 32,308,726,517,311,656/203,278,957.02
  6. Step 6: Final answer
    x = 158,937,880.20

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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.