Home / 129,018,812.80-193,528,219.20-96,770,185.60

Finding the Fourth Proportional to 129,018,812.80, 193,528,219.20 and 96,770,185.60

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Solution

The fourth proportional to 129,018,812.80, 193,528,219.20 and 96,770,185.60 is: 145,155,278.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,018,812.80 : 193,528,219.20 = 96,770,185.60 : x
  2. Step 2: Convert to fraction form
    129,018,812.80/193,528,219.20 = 96,770,185.60/x
  3. Step 3: Cross multiply
    129,018,812.80x = 193,528,219.20 × 96,770,185.60
  4. Step 4: Simplify right side
    129,018,812.80x = 18,727,761,690,821,480
  5. Step 5: Solve for x
    x = 18,727,761,690,821,480/129,018,812.80
  6. Step 6: Final answer
    x = 145,155,278.40

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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.