Home / 129,251,908.80-194,019,580.80-80,784,489.60

Finding the Fourth Proportional to 129,251,908.80, 194,019,580.80 and 80,784,489.60

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Solution

The fourth proportional to 129,251,908.80, 194,019,580.80 and 80,784,489.60 is: 121,265,310.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,251,908.80 : 194,019,580.80 = 80,784,489.60 : x
  2. Step 2: Convert to fraction form
    129,251,908.80/194,019,580.80 = 80,784,489.60/x
  3. Step 3: Cross multiply
    129,251,908.80x = 194,019,580.80 × 80,784,489.60
  4. Step 4: Simplify right side
    129,251,908.80x = 15,673,772,807,333,960
  5. Step 5: Solve for x
    x = 15,673,772,807,333,960/129,251,908.80
  6. Step 6: Final answer
    x = 121,265,310.14

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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.