Home / 83,207,228.78-124,827,866.16-28,612,723.88

Finding the Fourth Proportional to 83,207,228.78, 124,827,866.16 and 28,612,723.88

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Solution

The fourth proportional to 83,207,228.78, 124,827,866.16 and 28,612,723.88 is: 42,924,939.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,207,228.78 : 124,827,866.16 = 28,612,723.88 : x
  2. Step 2: Convert to fraction form
    83,207,228.78/124,827,866.16 = 28,612,723.88/x
  3. Step 3: Cross multiply
    83,207,228.78x = 124,827,866.16 × 28,612,723.88
  4. Step 4: Simplify right side
    83,207,228.78x = 3,571,665,266,965,675.50
  5. Step 5: Solve for x
    x = 3,571,665,266,965,675.50/83,207,228.78
  6. Step 6: Final answer
    x = 42,924,939.57

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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.