Home / 8,889,478.55-13,334,217.83-6,649,990.55

Finding the Fourth Proportional to 8,889,478.55, 13,334,217.83 and 6,649,990.55

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Solution

The fourth proportional to 8,889,478.55, 13,334,217.83 and 6,649,990.55 is: 9,974,985.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,889,478.55 : 13,334,217.83 = 6,649,990.55 : x
  2. Step 2: Convert to fraction form
    8,889,478.55/13,334,217.83 = 6,649,990.55/x
  3. Step 3: Cross multiply
    8,889,478.55x = 13,334,217.83 × 6,649,990.55
  4. Step 4: Simplify right side
    8,889,478.55x = 88,672,422,561,141.50
  5. Step 5: Solve for x
    x = 88,672,422,561,141.50/8,889,478.55
  6. Step 6: Final answer
    x = 9,974,985.83

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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.