Home / 21,438,821.56-32,140,145.23-9,299,145.42

Finding the Fourth Proportional to 21,438,821.56, 32,140,145.23 and 9,299,145.42

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Solution

The fourth proportional to 21,438,821.56, 32,140,145.23 and 9,299,145.42 is: 13,940,872.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,438,821.56 : 32,140,145.23 = 9,299,145.42 : x
  2. Step 2: Convert to fraction form
    21,438,821.56/32,140,145.23 = 9,299,145.42/x
  3. Step 3: Cross multiply
    21,438,821.56x = 32,140,145.23 × 9,299,145.42
  4. Step 4: Simplify right side
    21,438,821.56x = 298,875,884,313,689.38
  5. Step 5: Solve for x
    x = 298,875,884,313,689.38/21,438,821.56
  6. Step 6: Final answer
    x = 13,940,872.80

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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.