Home / 8,514,545.60-12,771,818.40-3,121,403.60

Finding the Fourth Proportional to 8,514,545.60, 12,771,818.40 and 3,121,403.60

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Solution

The fourth proportional to 8,514,545.60, 12,771,818.40 and 3,121,403.60 is: 4,682,105.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,514,545.60 : 12,771,818.40 = 3,121,403.60 : x
  2. Step 2: Convert to fraction form
    8,514,545.60/12,771,818.40 = 3,121,403.60/x
  3. Step 3: Cross multiply
    8,514,545.60x = 12,771,818.40 × 3,121,403.60
  4. Step 4: Simplify right side
    8,514,545.60x = 39,865,999,932,306.24
  5. Step 5: Solve for x
    x = 39,865,999,932,306.24/8,514,545.60
  6. Step 6: Final answer
    x = 4,682,105.40

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Similar ratio
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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.