Home / 20,486,503.20-30,720,897.45-10,247,406.60

Finding the Fourth Proportional to 20,486,503.20, 30,720,897.45 and 10,247,406.60

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Solution

The fourth proportional to 20,486,503.20, 30,720,897.45 and 10,247,406.60 is: 15,366,679.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,486,503.20 : 30,720,897.45 = 10,247,406.60 : x
  2. Step 2: Convert to fraction form
    20,486,503.20/30,720,897.45 = 10,247,406.60/x
  3. Step 3: Cross multiply
    20,486,503.20x = 30,720,897.45 × 10,247,406.60
  4. Step 4: Simplify right side
    20,486,503.20x = 314,809,527,287,053.12
  5. Step 5: Solve for x
    x = 314,809,527,287,053.12/20,486,503.20
  6. Step 6: Final answer
    x = 15,366,679.43

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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.