Home / 7,157,058.40-10,728,589.20-6,401,231.20

Finding the Fourth Proportional to 7,157,058.40, 10,728,589.20 and 6,401,231.20

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Solution

The fourth proportional to 7,157,058.40, 10,728,589.20 and 6,401,231.20 is: 9,595,587.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,157,058.40 : 10,728,589.20 = 6,401,231.20 : x
  2. Step 2: Convert to fraction form
    7,157,058.40/10,728,589.20 = 6,401,231.20/x
  3. Step 3: Cross multiply
    7,157,058.40x = 10,728,589.20 × 6,401,231.20
  4. Step 4: Simplify right side
    7,157,058.40x = 68,676,179,919,023.04
  5. Step 5: Solve for x
    x = 68,676,179,919,023.04/7,157,058.40
  6. Step 6: Final answer
    x = 9,595,587.47

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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.