Home / 7,157,046.40-10,728,571.20-6,401,219.20

Finding the Fourth Proportional to 7,157,046.40, 10,728,571.20 and 6,401,219.20

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Solution

The fourth proportional to 7,157,046.40, 10,728,571.20 and 6,401,219.20 is: 9,595,569.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,157,046.40 : 10,728,571.20 = 6,401,219.20 : x
  2. Step 2: Convert to fraction form
    7,157,046.40/10,728,571.20 = 6,401,219.20/x
  3. Step 3: Cross multiply
    7,157,046.40x = 10,728,571.20 × 6,401,219.20
  4. Step 4: Simplify right side
    7,157,046.40x = 68,675,935,954,007.04
  5. Step 5: Solve for x
    x = 68,675,935,954,007.04/7,157,046.40
  6. Step 6: Final answer
    x = 9,595,569.47

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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.