Home / 323,403,399.40-485,105,099.10-129,218,794.60

Finding the Fourth Proportional to 323,403,399.40, 485,105,099.10 and 129,218,794.60

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Solution

The fourth proportional to 323,403,399.40, 485,105,099.10 and 129,218,794.60 is: 193,828,191.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,403,399.40 : 485,105,099.10 = 129,218,794.60 : x
  2. Step 2: Convert to fraction form
    323,403,399.40/485,105,099.10 = 129,218,794.60/x
  3. Step 3: Cross multiply
    323,403,399.40x = 485,105,099.10 × 129,218,794.60
  4. Step 4: Simplify right side
    323,403,399.40x = 62,684,696,160,015,544
  5. Step 5: Solve for x
    x = 62,684,696,160,015,544/323,403,399.40
  6. Step 6: Final answer
    x = 193,828,191.90

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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.