Home / 12,490,912.80-18,722,372.40-5,301,223.20

Finding the Fourth Proportional to 12,490,912.80, 18,722,372.40 and 5,301,223.20

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Solution

The fourth proportional to 12,490,912.80, 18,722,372.40 and 5,301,223.20 is: 7,945,894.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,490,912.80 : 18,722,372.40 = 5,301,223.20 : x
  2. Step 2: Convert to fraction form
    12,490,912.80/18,722,372.40 = 5,301,223.20/x
  3. Step 3: Cross multiply
    12,490,912.80x = 18,722,372.40 × 5,301,223.20
  4. Step 4: Simplify right side
    12,490,912.80x = 99,251,474,925,919.67
  5. Step 5: Solve for x
    x = 99,251,474,925,919.67/12,490,912.80
  6. Step 6: Final answer
    x = 7,945,894.47

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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.