Home / 21,870,002.70-32,805,004.05-12,285,693.90

Finding the Fourth Proportional to 21,870,002.70, 32,805,004.05 and 12,285,693.90

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Solution

The fourth proportional to 21,870,002.70, 32,805,004.05 and 12,285,693.90 is: 18,428,540.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,870,002.70 : 32,805,004.05 = 12,285,693.90 : x
  2. Step 2: Convert to fraction form
    21,870,002.70/32,805,004.05 = 12,285,693.90/x
  3. Step 3: Cross multiply
    21,870,002.70x = 32,805,004.05 × 12,285,693.90
  4. Step 4: Simplify right side
    21,870,002.70x = 403,032,238,146,560.31
  5. Step 5: Solve for x
    x = 403,032,238,146,560.31/21,870,002.70
  6. Step 6: Final answer
    x = 18,428,540.85

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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.