Home / 20,426,317.28-28,188,317.88-11,259,156.88

Finding the Fourth Proportional to 20,426,317.28, 28,188,317.88 and 11,259,156.88

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Solution

The fourth proportional to 20,426,317.28, 28,188,317.88 and 11,259,156.88 is: 15,537,636.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,426,317.28 : 28,188,317.88 = 11,259,156.88 : x
  2. Step 2: Convert to fraction form
    20,426,317.28/28,188,317.88 = 11,259,156.88/x
  3. Step 3: Cross multiply
    20,426,317.28x = 28,188,317.88 × 11,259,156.88
  4. Step 4: Simplify right side
    20,426,317.28x = 317,376,693,194,229
  5. Step 5: Solve for x
    x = 317,376,693,194,229/20,426,317.28
  6. Step 6: Final answer
    x = 15,537,636.51

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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.