Home / 280,580,046.54-387,213,959.76-155,129,921.16

Finding the Fourth Proportional to 280,580,046.54, 387,213,959.76 and 155,129,921.16

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Solution

The fourth proportional to 280,580,046.54, 387,213,959.76 and 155,129,921.16 is: 214,086,752.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,580,046.54 : 387,213,959.76 = 155,129,921.16 : x
  2. Step 2: Convert to fraction form
    280,580,046.54/387,213,959.76 = 155,129,921.16/x
  3. Step 3: Cross multiply
    280,580,046.54x = 387,213,959.76 × 155,129,921.16
  4. Step 4: Simplify right side
    280,580,046.54x = 60,068,471,049,620,208
  5. Step 5: Solve for x
    x = 60,068,471,049,620,208/280,580,046.54
  6. Step 6: Final answer
    x = 214,086,752.75

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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.