Home / 25,878,841.20-38,811,616.56-7,678,731.42

Finding the Fourth Proportional to 25,878,841.20, 38,811,616.56 and 7,678,731.42

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Solution

The fourth proportional to 25,878,841.20, 38,811,616.56 and 7,678,731.42 is: 11,516,125.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,878,841.20 : 38,811,616.56 = 7,678,731.42 : x
  2. Step 2: Convert to fraction form
    25,878,841.20/38,811,616.56 = 7,678,731.42/x
  3. Step 3: Cross multiply
    25,878,841.20x = 38,811,616.56 × 7,678,731.42
  4. Step 4: Simplify right side
    25,878,841.20x = 298,023,979,540,264.31
  5. Step 5: Solve for x
    x = 298,023,979,540,264.31/25,878,841.20
  6. Step 6: Final answer
    x = 11,516,125.36

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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.