Home / 82,035,651.20-123,044,145.60-21,457,500.80

Finding the Fourth Proportional to 82,035,651.20, 123,044,145.60 and 21,457,500.80

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Solution

The fourth proportional to 82,035,651.20, 123,044,145.60 and 21,457,500.80 is: 32,183,810.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,035,651.20 : 123,044,145.60 = 21,457,500.80 : x
  2. Step 2: Convert to fraction form
    82,035,651.20/123,044,145.60 = 21,457,500.80/x
  3. Step 3: Cross multiply
    82,035,651.20x = 123,044,145.60 × 21,457,500.80
  4. Step 4: Simplify right side
    82,035,651.20x = 2,640,219,852,647,316.50
  5. Step 5: Solve for x
    x = 2,640,219,852,647,316.50/82,035,651.20
  6. Step 6: Final answer
    x = 32,183,810.50

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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.