Home / 25,917,666.80-38,876,500.20-20,878,818.80

Finding the Fourth Proportional to 25,917,666.80, 38,876,500.20 and 20,878,818.80

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Solution

The fourth proportional to 25,917,666.80, 38,876,500.20 and 20,878,818.80 is: 31,318,228.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,917,666.80 : 38,876,500.20 = 20,878,818.80 : x
  2. Step 2: Convert to fraction form
    25,917,666.80/38,876,500.20 = 20,878,818.80/x
  3. Step 3: Cross multiply
    25,917,666.80x = 38,876,500.20 × 20,878,818.80
  4. Step 4: Simplify right side
    25,917,666.80x = 811,695,403,253,963.88
  5. Step 5: Solve for x
    x = 811,695,403,253,963.88/25,917,666.80
  6. Step 6: Final answer
    x = 31,318,228.20

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1.5x scale

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.