Home / 21,490,179.90-32,235,269.85-20,229,431.10

Finding the Fourth Proportional to 21,490,179.90, 32,235,269.85 and 20,229,431.10

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Solution

The fourth proportional to 21,490,179.90, 32,235,269.85 and 20,229,431.10 is: 30,344,146.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,490,179.90 : 32,235,269.85 = 20,229,431.10 : x
  2. Step 2: Convert to fraction form
    21,490,179.90/32,235,269.85 = 20,229,431.10/x
  3. Step 3: Cross multiply
    21,490,179.90x = 32,235,269.85 × 20,229,431.10
  4. Step 4: Simplify right side
    21,490,179.90x = 652,101,170,420,482.38
  5. Step 5: Solve for x
    x = 652,101,170,420,482.38/21,490,179.90
  6. Step 6: Final answer
    x = 30,344,146.65

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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.