Home / 129,018,820.80-193,528,231.20-96,770,193.60

Finding the Fourth Proportional to 129,018,820.80, 193,528,231.20 and 96,770,193.60

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Solution

The fourth proportional to 129,018,820.80, 193,528,231.20 and 96,770,193.60 is: 145,155,290.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,018,820.80 : 193,528,231.20 = 96,770,193.60 : x
  2. Step 2: Convert to fraction form
    129,018,820.80/193,528,231.20 = 96,770,193.60/x
  3. Step 3: Cross multiply
    129,018,820.80x = 193,528,231.20 × 96,770,193.60
  4. Step 4: Simplify right side
    129,018,820.80x = 18,727,764,400,289,560
  5. Step 5: Solve for x
    x = 18,727,764,400,289,560/129,018,820.80
  6. Step 6: Final answer
    x = 145,155,290.40

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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.