Home / 103,520,247.40-155,280,371.10-31,707,332.20

Finding the Fourth Proportional to 103,520,247.40, 155,280,371.10 and 31,707,332.20

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Solution

The fourth proportional to 103,520,247.40, 155,280,371.10 and 31,707,332.20 is: 47,560,998.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,520,247.40 : 155,280,371.10 = 31,707,332.20 : x
  2. Step 2: Convert to fraction form
    103,520,247.40/155,280,371.10 = 31,707,332.20/x
  3. Step 3: Cross multiply
    103,520,247.40x = 155,280,371.10 × 31,707,332.20
  4. Step 4: Simplify right side
    103,520,247.40x = 4,923,526,310,606,979
  5. Step 5: Solve for x
    x = 4,923,526,310,606,979/103,520,247.40
  6. Step 6: Final answer
    x = 47,560,998.30

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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.