Home / 8,522,626.40-12,783,939.60-7,377,999.20

Finding the Fourth Proportional to 8,522,626.40, 12,783,939.60 and 7,377,999.20

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Solution

The fourth proportional to 8,522,626.40, 12,783,939.60 and 7,377,999.20 is: 11,066,998.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,522,626.40 : 12,783,939.60 = 7,377,999.20 : x
  2. Step 2: Convert to fraction form
    8,522,626.40/12,783,939.60 = 7,377,999.20/x
  3. Step 3: Cross multiply
    8,522,626.40x = 12,783,939.60 × 7,377,999.20
  4. Step 4: Simplify right side
    8,522,626.40x = 94,319,896,141,648.31
  5. Step 5: Solve for x
    x = 94,319,896,141,648.31/8,522,626.40
  6. Step 6: Final answer
    x = 11,066,998.80

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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.