Home / 84,602,881.72-126,904,760.48-38,512,517.88

Finding the Fourth Proportional to 84,602,881.72, 126,904,760.48 and 38,512,517.88

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Solution

The fourth proportional to 84,602,881.72, 126,904,760.48 and 38,512,517.88 is: 57,768,976.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,602,881.72 : 126,904,760.48 = 38,512,517.88 : x
  2. Step 2: Convert to fraction form
    84,602,881.72/126,904,760.48 = 38,512,517.88/x
  3. Step 3: Cross multiply
    84,602,881.72x = 126,904,760.48 × 38,512,517.88
  4. Step 4: Simplify right side
    84,602,881.72x = 4,887,421,857,043,118
  5. Step 5: Solve for x
    x = 4,887,421,857,043,118/84,602,881.72
  6. Step 6: Final answer
    x = 57,768,976.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.