Home / 13,588,787.20-18,751,964.10-7,393,859.40

Finding the Fourth Proportional to 13,588,787.20, 18,751,964.10 and 7,393,859.40

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Solution

The fourth proportional to 13,588,787.20, 18,751,964.10 and 7,393,859.40 is: 10,203,220.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,588,787.20 : 18,751,964.10 = 7,393,859.40 : x
  2. Step 2: Convert to fraction form
    13,588,787.20/18,751,964.10 = 7,393,859.40/x
  3. Step 3: Cross multiply
    13,588,787.20x = 18,751,964.10 × 7,393,859.40
  4. Step 4: Simplify right side
    13,588,787.20x = 138,649,386,029,247.56
  5. Step 5: Solve for x
    x = 138,649,386,029,247.56/13,588,787.20
  6. Step 6: Final answer
    x = 10,203,220.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.