Home / 8,919,009.60-13,378,514.40-2,187,423.60

Finding the Fourth Proportional to 8,919,009.60, 13,378,514.40 and 2,187,423.60

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Solution

The fourth proportional to 8,919,009.60, 13,378,514.40 and 2,187,423.60 is: 3,281,135.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,919,009.60 : 13,378,514.40 = 2,187,423.60 : x
  2. Step 2: Convert to fraction form
    8,919,009.60/13,378,514.40 = 2,187,423.60/x
  3. Step 3: Cross multiply
    8,919,009.60x = 13,378,514.40 × 2,187,423.60
  4. Step 4: Simplify right side
    8,919,009.60x = 29,264,478,131,499.84
  5. Step 5: Solve for x
    x = 29,264,478,131,499.84/8,919,009.60
  6. Step 6: Final answer
    x = 3,281,135.40

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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.