Home / 84,602,876.61-126,904,752.87-38,512,512.81

Finding the Fourth Proportional to 84,602,876.61, 126,904,752.87 and 38,512,512.81

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Solution

The fourth proportional to 84,602,876.61, 126,904,752.87 and 38,512,512.81 is: 57,768,968.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,602,876.61 : 126,904,752.87 = 38,512,512.81 : x
  2. Step 2: Convert to fraction form
    84,602,876.61/126,904,752.87 = 38,512,512.81/x
  3. Step 3: Cross multiply
    84,602,876.61x = 126,904,752.87 × 38,512,512.81
  4. Step 4: Simplify right side
    84,602,876.61x = 4,887,420,920,555,760
  5. Step 5: Solve for x
    x = 4,887,420,920,555,760/84,602,876.61
  6. Step 6: Final answer
    x = 57,768,968.58

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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.