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Finding the Fourth Proportional to 8,678,581.80, 13,017,872.70 and 4,191,311.40

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Solution

The fourth proportional to 8,678,581.80, 13,017,872.70 and 4,191,311.40 is: 6,286,967.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,678,581.80 : 13,017,872.70 = 4,191,311.40 : x
  2. Step 2: Convert to fraction form
    8,678,581.80/13,017,872.70 = 4,191,311.40/x
  3. Step 3: Cross multiply
    8,678,581.80x = 13,017,872.70 × 4,191,311.40
  4. Step 4: Simplify right side
    8,678,581.80x = 54,561,958,251,258.77
  5. Step 5: Solve for x
    x = 54,561,958,251,258.77/8,678,581.80
  6. Step 6: Final answer
    x = 6,286,967.10

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Similar ratio
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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.