Home / 127,965,380.24-176,613,340.92-78,433,306.40

Finding the Fourth Proportional to 127,965,380.24, 176,613,340.92 and 78,433,306.40

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Solution

The fourth proportional to 127,965,380.24, 176,613,340.92 and 78,433,306.40 is: 108,250,905.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,965,380.24 : 176,613,340.92 = 78,433,306.40 : x
  2. Step 2: Convert to fraction form
    127,965,380.24/176,613,340.92 = 78,433,306.40/x
  3. Step 3: Cross multiply
    127,965,380.24x = 176,613,340.92 × 78,433,306.40
  4. Step 4: Simplify right side
    127,965,380.24x = 13,852,368,282,706,018
  5. Step 5: Solve for x
    x = 13,852,368,282,706,018/127,965,380.24
  6. Step 6: Final answer
    x = 108,250,905.49

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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.