Home / 8,512,308.80-12,768,463.20-7,449,426.80

Finding the Fourth Proportional to 8,512,308.80, 12,768,463.20 and 7,449,426.80

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Solution

The fourth proportional to 8,512,308.80, 12,768,463.20 and 7,449,426.80 is: 11,174,140.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,512,308.80 : 12,768,463.20 = 7,449,426.80 : x
  2. Step 2: Convert to fraction form
    8,512,308.80/12,768,463.20 = 7,449,426.80/x
  3. Step 3: Cross multiply
    8,512,308.80x = 12,768,463.20 × 7,449,426.80
  4. Step 4: Simplify right side
    8,512,308.80x = 95,117,731,956,893.75
  5. Step 5: Solve for x
    x = 95,117,731,956,893.75/8,512,308.80
  6. Step 6: Final answer
    x = 11,174,140.20

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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.