Home / 20,739,630.40-31,109,445.60-13,573,268.80

Finding the Fourth Proportional to 20,739,630.40, 31,109,445.60 and 13,573,268.80

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Solution

The fourth proportional to 20,739,630.40, 31,109,445.60 and 13,573,268.80 is: 20,359,903.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,739,630.40 : 31,109,445.60 = 13,573,268.80 : x
  2. Step 2: Convert to fraction form
    20,739,630.40/31,109,445.60 = 13,573,268.80/x
  3. Step 3: Cross multiply
    20,739,630.40x = 31,109,445.60 × 13,573,268.80
  4. Step 4: Simplify right side
    20,739,630.40x = 422,256,867,347,777.31
  5. Step 5: Solve for x
    x = 422,256,867,347,777.31/20,739,630.40
  6. Step 6: Final answer
    x = 20,359,903.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.