Home / 8,319,074.40-12,478,611.60-7,899,170.40

Finding the Fourth Proportional to 8,319,074.40, 12,478,611.60 and 7,899,170.40

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Solution

The fourth proportional to 8,319,074.40, 12,478,611.60 and 7,899,170.40 is: 11,848,755.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,319,074.40 : 12,478,611.60 = 7,899,170.40 : x
  2. Step 2: Convert to fraction form
    8,319,074.40/12,478,611.60 = 7,899,170.40/x
  3. Step 3: Cross multiply
    8,319,074.40x = 12,478,611.60 × 7,899,170.40
  4. Step 4: Simplify right side
    8,319,074.40x = 98,570,679,383,816.64
  5. Step 5: Solve for x
    x = 98,570,679,383,816.64/8,319,074.40
  6. Step 6: Final answer
    x = 11,848,755.60

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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.