Home / 20,340,570.24-28,070,193.12-11,048,321.28

Finding the Fourth Proportional to 20,340,570.24, 28,070,193.12 and 11,048,321.28

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Solution

The fourth proportional to 20,340,570.24, 28,070,193.12 and 11,048,321.28 is: 15,246,795.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,340,570.24 : 28,070,193.12 = 11,048,321.28 : x
  2. Step 2: Convert to fraction form
    20,340,570.24/28,070,193.12 = 11,048,321.28/x
  3. Step 3: Cross multiply
    20,340,570.24x = 28,070,193.12 × 11,048,321.28
  4. Step 4: Simplify right side
    20,340,570.24x = 310,128,511,981,405.56
  5. Step 5: Solve for x
    x = 310,128,511,981,405.56/20,340,570.24
  6. Step 6: Final answer
    x = 15,246,795.36

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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.