Home / 81,660,205.80-122,490,308.70-36,222,000.30

Finding the Fourth Proportional to 81,660,205.80, 122,490,308.70 and 36,222,000.30

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Solution

The fourth proportional to 81,660,205.80, 122,490,308.70 and 36,222,000.30 is: 54,333,000.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,660,205.80 : 122,490,308.70 = 36,222,000.30 : x
  2. Step 2: Convert to fraction form
    81,660,205.80/122,490,308.70 = 36,222,000.30/x
  3. Step 3: Cross multiply
    81,660,205.80x = 122,490,308.70 × 36,222,000.30
  4. Step 4: Simplify right side
    81,660,205.80x = 4,436,843,998,478,492.50
  5. Step 5: Solve for x
    x = 4,436,843,998,478,492.50/81,660,205.80
  6. Step 6: Final answer
    x = 54,333,000.45

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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.