Home / 137,070,621.64-189,155,694.24-78,332,613.04

Finding the Fourth Proportional to 137,070,621.64, 189,155,694.24 and 78,332,613.04

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Solution

The fourth proportional to 137,070,621.64, 189,155,694.24 and 78,332,613.04 is: 108,097,998.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,070,621.64 : 189,155,694.24 = 78,332,613.04 : x
  2. Step 2: Convert to fraction form
    137,070,621.64/189,155,694.24 = 78,332,613.04/x
  3. Step 3: Cross multiply
    137,070,621.64x = 189,155,694.24 × 78,332,613.04
  4. Step 4: Simplify right side
    137,070,621.64x = 14,817,059,801,214,478
  5. Step 5: Solve for x
    x = 14,817,059,801,214,478/137,070,621.64
  6. Step 6: Final answer
    x = 108,097,998.13

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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.