Home / 8,333,144.40-12,499,716.60-8,280,000.30

Finding the Fourth Proportional to 8,333,144.40, 12,499,716.60 and 8,280,000.30

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Solution

The fourth proportional to 8,333,144.40, 12,499,716.60 and 8,280,000.30 is: 12,420,000.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,333,144.40 : 12,499,716.60 = 8,280,000.30 : x
  2. Step 2: Convert to fraction form
    8,333,144.40/12,499,716.60 = 8,280,000.30/x
  3. Step 3: Cross multiply
    8,333,144.40x = 12,499,716.60 × 8,280,000.30
  4. Step 4: Simplify right side
    8,333,144.40x = 103,497,657,197,914.97
  5. Step 5: Solve for x
    x = 103,497,657,197,914.97/8,333,144.40
  6. Step 6: Final answer
    x = 12,420,000.45

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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.