Home / 20,422,448.40-28,182,978.92-11,255,091.28

Finding the Fourth Proportional to 20,422,448.40, 28,182,978.92 and 11,255,091.28

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Solution

The fourth proportional to 20,422,448.40, 28,182,978.92 and 11,255,091.28 is: 15,532,026.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,422,448.40 : 28,182,978.92 = 11,255,091.28 : x
  2. Step 2: Convert to fraction form
    20,422,448.40/28,182,978.92 = 11,255,091.28/x
  3. Step 3: Cross multiply
    20,422,448.40x = 28,182,978.92 × 11,255,091.28
  4. Step 4: Simplify right side
    20,422,448.40x = 317,202,000,286,915.81
  5. Step 5: Solve for x
    x = 317,202,000,286,915.81/20,422,448.40
  6. Step 6: Final answer
    x = 15,532,026.04

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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.