Home / 54,379,900.20-81,569,850.30-31,390,156.20

Finding the Fourth Proportional to 54,379,900.20, 81,569,850.30 and 31,390,156.20

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Solution

The fourth proportional to 54,379,900.20, 81,569,850.30 and 31,390,156.20 is: 47,085,234.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,379,900.20 : 81,569,850.30 = 31,390,156.20 : x
  2. Step 2: Convert to fraction form
    54,379,900.20/81,569,850.30 = 31,390,156.20/x
  3. Step 3: Cross multiply
    54,379,900.20x = 81,569,850.30 × 31,390,156.20
  4. Step 4: Simplify right side
    54,379,900.20x = 2,560,490,342,127,616.50
  5. Step 5: Solve for x
    x = 2,560,490,342,127,616.50/54,379,900.20
  6. Step 6: Final answer
    x = 47,085,234.30

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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.