Home / 20,456,448.48-28,229,841.18-11,289,025.64

Finding the Fourth Proportional to 20,456,448.48, 28,229,841.18 and 11,289,025.64

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Solution

The fourth proportional to 20,456,448.48, 28,229,841.18 and 11,289,025.64 is: 15,578,823.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,456,448.48 : 28,229,841.18 = 11,289,025.64 : x
  2. Step 2: Convert to fraction form
    20,456,448.48/28,229,841.18 = 11,289,025.64/x
  3. Step 3: Cross multiply
    20,456,448.48x = 28,229,841.18 × 11,289,025.64
  4. Step 4: Simplify right side
    20,456,448.48x = 318,687,400,894,147.88
  5. Step 5: Solve for x
    x = 318,687,400,894,147.88/20,456,448.48
  6. Step 6: Final answer
    x = 15,578,823.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.