Home / 19,720,279.60-29,580,419.40-13,350,180.40

Finding the Fourth Proportional to 19,720,279.60, 29,580,419.40 and 13,350,180.40

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Solution

The fourth proportional to 19,720,279.60, 29,580,419.40 and 13,350,180.40 is: 20,025,270.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,720,279.60 : 29,580,419.40 = 13,350,180.40 : x
  2. Step 2: Convert to fraction form
    19,720,279.60/29,580,419.40 = 13,350,180.40/x
  3. Step 3: Cross multiply
    19,720,279.60x = 29,580,419.40 × 13,350,180.40
  4. Step 4: Simplify right side
    19,720,279.60x = 394,903,935,297,659.75
  5. Step 5: Solve for x
    x = 394,903,935,297,659.75/19,720,279.60
  6. Step 6: Final answer
    x = 20,025,270.60

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1.5x scale

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.