Home / 8,244,657.90-12,366,986.85-6,921,960.30

Finding the Fourth Proportional to 8,244,657.90, 12,366,986.85 and 6,921,960.30

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Solution

The fourth proportional to 8,244,657.90, 12,366,986.85 and 6,921,960.30 is: 10,382,940.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,244,657.90 : 12,366,986.85 = 6,921,960.30 : x
  2. Step 2: Convert to fraction form
    8,244,657.90/12,366,986.85 = 6,921,960.30/x
  3. Step 3: Cross multiply
    8,244,657.90x = 12,366,986.85 × 6,921,960.30
  4. Step 4: Simplify right side
    8,244,657.90x = 85,603,792,006,322.05
  5. Step 5: Solve for x
    x = 85,603,792,006,322.05/8,244,657.90
  6. Step 6: Final answer
    x = 10,382,940.45

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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.