Home / 280,932,944.97-387,688,293.51-155,493,853.35

Finding the Fourth Proportional to 280,932,944.97, 387,688,293.51 and 155,493,853.35

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Solution

The fourth proportional to 280,932,944.97, 387,688,293.51 and 155,493,853.35 is: 214,581,976.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,932,944.97 : 387,688,293.51 = 155,493,853.35 : x
  2. Step 2: Convert to fraction form
    280,932,944.97/387,688,293.51 = 155,493,853.35/x
  3. Step 3: Cross multiply
    280,932,944.97x = 387,688,293.51 × 155,493,853.35
  4. Step 4: Simplify right side
    280,932,944.97x = 60,283,146,656,555,696
  5. Step 5: Solve for x
    x = 60,283,146,656,555,696/280,932,944.97
  6. Step 6: Final answer
    x = 214,581,976.72

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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.