Home / 10,647,208.20-15,970,812.30-7,245,985.80

Finding the Fourth Proportional to 10,647,208.20, 15,970,812.30 and 7,245,985.80

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Solution

The fourth proportional to 10,647,208.20, 15,970,812.30 and 7,245,985.80 is: 10,868,978.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,647,208.20 : 15,970,812.30 = 7,245,985.80 : x
  2. Step 2: Convert to fraction form
    10,647,208.20/15,970,812.30 = 7,245,985.80/x
  3. Step 3: Cross multiply
    10,647,208.20x = 15,970,812.30 × 7,245,985.80
  4. Step 4: Simplify right side
    10,647,208.20x = 115,724,279,140,265.34
  5. Step 5: Solve for x
    x = 115,724,279,140,265.34/10,647,208.20
  6. Step 6: Final answer
    x = 10,868,978.70

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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.