Home / 10,021,067.40-15,031,601.10-8,586,176.70

Finding the Fourth Proportional to 10,021,067.40, 15,031,601.10 and 8,586,176.70

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Solution

The fourth proportional to 10,021,067.40, 15,031,601.10 and 8,586,176.70 is: 12,879,265.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,021,067.40 : 15,031,601.10 = 8,586,176.70 : x
  2. Step 2: Convert to fraction form
    10,021,067.40/15,031,601.10 = 8,586,176.70/x
  3. Step 3: Cross multiply
    10,021,067.40x = 15,031,601.10 × 8,586,176.70
  4. Step 4: Simplify right side
    10,021,067.40x = 129,063,983,128,514.36
  5. Step 5: Solve for x
    x = 129,063,983,128,514.36/10,021,067.40
  6. Step 6: Final answer
    x = 12,879,265.05

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Double scale
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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.