Home / 4,752,002.20-7,128,003.30-2,925,419.80

Finding the Fourth Proportional to 4,752,002.20, 7,128,003.30 and 2,925,419.80

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Solution

The fourth proportional to 4,752,002.20, 7,128,003.30 and 2,925,419.80 is: 4,388,129.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,752,002.20 : 7,128,003.30 = 2,925,419.80 : x
  2. Step 2: Convert to fraction form
    4,752,002.20/7,128,003.30 = 2,925,419.80/x
  3. Step 3: Cross multiply
    4,752,002.20x = 7,128,003.30 × 2,925,419.80
  4. Step 4: Simplify right side
    4,752,002.20x = 20,852,401,988,285.34
  5. Step 5: Solve for x
    x = 20,852,401,988,285.34/4,752,002.20
  6. Step 6: Final answer
    x = 4,388,129.70

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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.