Home / 21,789,007.70-32,683,511.55-18,387,785.30

Finding the Fourth Proportional to 21,789,007.70, 32,683,511.55 and 18,387,785.30

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Solution

The fourth proportional to 21,789,007.70, 32,683,511.55 and 18,387,785.30 is: 27,581,677.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,789,007.70 : 32,683,511.55 = 18,387,785.30 : x
  2. Step 2: Convert to fraction form
    21,789,007.70/32,683,511.55 = 18,387,785.30/x
  3. Step 3: Cross multiply
    21,789,007.70x = 32,683,511.55 × 18,387,785.30
  4. Step 4: Simplify right side
    21,789,007.70x = 600,977,393,231,470.25
  5. Step 5: Solve for x
    x = 600,977,393,231,470.25/21,789,007.70
  6. Step 6: Final answer
    x = 27,581,677.95

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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.