Home / 20,230,458.60-30,345,687.90-10,642,132.20

Finding the Fourth Proportional to 20,230,458.60, 30,345,687.90 and 10,642,132.20

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Solution

The fourth proportional to 20,230,458.60, 30,345,687.90 and 10,642,132.20 is: 15,963,198.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,230,458.60 : 30,345,687.90 = 10,642,132.20 : x
  2. Step 2: Convert to fraction form
    20,230,458.60/30,345,687.90 = 10,642,132.20/x
  3. Step 3: Cross multiply
    20,230,458.60x = 30,345,687.90 × 10,642,132.20
  4. Step 4: Simplify right side
    20,230,458.60x = 322,942,822,331,740.31
  5. Step 5: Solve for x
    x = 322,942,822,331,740.31/20,230,458.60
  6. Step 6: Final answer
    x = 15,963,198.30

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1.5x scale

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.