Home / 129,027,287.80-193,540,931.70-96,778,660.60

Finding the Fourth Proportional to 129,027,287.80, 193,540,931.70 and 96,778,660.60

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Solution

The fourth proportional to 129,027,287.80, 193,540,931.70 and 96,778,660.60 is: 145,167,990.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,027,287.80 : 193,540,931.70 = 96,778,660.60 : x
  2. Step 2: Convert to fraction form
    129,027,287.80/193,540,931.70 = 96,778,660.60/x
  3. Step 3: Cross multiply
    129,027,287.80x = 193,540,931.70 × 96,778,660.60
  4. Step 4: Simplify right side
    129,027,287.80x = 18,730,632,141,202,080
  5. Step 5: Solve for x
    x = 18,730,632,141,202,080/129,027,287.80
  6. Step 6: Final answer
    x = 145,167,990.90

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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.