Home / 8,405,082.90-12,607,624.35-6,279,318.90

Finding the Fourth Proportional to 8,405,082.90, 12,607,624.35 and 6,279,318.90

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Solution

The fourth proportional to 8,405,082.90, 12,607,624.35 and 6,279,318.90 is: 9,418,978.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,405,082.90 : 12,607,624.35 = 6,279,318.90 : x
  2. Step 2: Convert to fraction form
    8,405,082.90/12,607,624.35 = 6,279,318.90/x
  3. Step 3: Cross multiply
    8,405,082.90x = 12,607,624.35 × 6,279,318.90
  4. Step 4: Simplify right side
    8,405,082.90x = 79,167,293,865,055.22
  5. Step 5: Solve for x
    x = 79,167,293,865,055.22/8,405,082.90
  6. Step 6: Final answer
    x = 9,418,978.35

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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.