Home / 72,164,149.60-108,240,576.48-20,346,659.20

Finding the Fourth Proportional to 72,164,149.60, 108,240,576.48 and 20,346,659.20

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Solution

The fourth proportional to 72,164,149.60, 108,240,576.48 and 20,346,659.20 is: 30,518,396.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,164,149.60 : 108,240,576.48 = 20,346,659.20 : x
  2. Step 2: Convert to fraction form
    72,164,149.60/108,240,576.48 = 20,346,659.20/x
  3. Step 3: Cross multiply
    72,164,149.60x = 108,240,576.48 × 20,346,659.20
  4. Step 4: Simplify right side
    72,164,149.60x = 2,202,334,121,250,095.50
  5. Step 5: Solve for x
    x = 2,202,334,121,250,095.50/72,164,149.60
  6. Step 6: Final answer
    x = 30,518,396.37

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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.