Home / 82,448,001.20-123,672,001.80-28,595,313.20

Finding the Fourth Proportional to 82,448,001.20, 123,672,001.80 and 28,595,313.20

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Solution

The fourth proportional to 82,448,001.20, 123,672,001.80 and 28,595,313.20 is: 42,892,969.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,448,001.20 : 123,672,001.80 = 28,595,313.20 : x
  2. Step 2: Convert to fraction form
    82,448,001.20/123,672,001.80 = 28,595,313.20/x
  3. Step 3: Cross multiply
    82,448,001.20x = 123,672,001.80 × 28,595,313.20
  4. Step 4: Simplify right side
    82,448,001.20x = 3,536,439,625,541,963.50
  5. Step 5: Solve for x
    x = 3,536,439,625,541,963.50/82,448,001.20
  6. Step 6: Final answer
    x = 42,892,969.80

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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.