Home / 20,396,449.04-28,146,553.80-11,229,160.64

Finding the Fourth Proportional to 20,396,449.04, 28,146,553.80 and 11,229,160.64

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Solution

The fourth proportional to 20,396,449.04, 28,146,553.80 and 11,229,160.64 is: 15,495,941.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,396,449.04 : 28,146,553.80 = 11,229,160.64 : x
  2. Step 2: Convert to fraction form
    20,396,449.04/28,146,553.80 = 11,229,160.64/x
  3. Step 3: Cross multiply
    20,396,449.04x = 28,146,553.80 × 11,229,160.64
  4. Step 4: Simplify right side
    20,396,449.04x = 316,062,174,082,602.44
  5. Step 5: Solve for x
    x = 316,062,174,082,602.44/20,396,449.04
  6. Step 6: Final answer
    x = 15,495,941.15

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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.