Home / 20,422,447.40-28,182,977.54-11,255,090.28

Finding the Fourth Proportional to 20,422,447.40, 28,182,977.54 and 11,255,090.28

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Solution

The fourth proportional to 20,422,447.40, 28,182,977.54 and 11,255,090.28 is: 15,532,024.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,422,447.40 : 28,182,977.54 = 11,255,090.28 : x
  2. Step 2: Convert to fraction form
    20,422,447.40/28,182,977.54 = 11,255,090.28/x
  3. Step 3: Cross multiply
    20,422,447.40x = 28,182,977.54 × 11,255,090.28
  4. Step 4: Simplify right side
    20,422,447.40x = 317,201,956,571,912.31
  5. Step 5: Solve for x
    x = 317,201,956,571,912.31/20,422,447.40
  6. Step 6: Final answer
    x = 15,532,024.66

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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.