Home / 82,136,374.20-123,204,561.30-21,558,223.80

Finding the Fourth Proportional to 82,136,374.20, 123,204,561.30 and 21,558,223.80

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Solution

The fourth proportional to 82,136,374.20, 123,204,561.30 and 21,558,223.80 is: 32,337,335.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,136,374.20 : 123,204,561.30 = 21,558,223.80 : x
  2. Step 2: Convert to fraction form
    82,136,374.20/123,204,561.30 = 21,558,223.80/x
  3. Step 3: Cross multiply
    82,136,374.20x = 123,204,561.30 × 21,558,223.80
  4. Step 4: Simplify right side
    82,136,374.20x = 2,656,071,505,686,219
  5. Step 5: Solve for x
    x = 2,656,071,505,686,219/82,136,374.20
  6. Step 6: Final answer
    x = 32,337,335.70

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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.