Home / 218,673,187.20-328,015,029.60-65,324,246.40

Finding the Fourth Proportional to 218,673,187.20, 328,015,029.60 and 65,324,246.40

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Solution

The fourth proportional to 218,673,187.20, 328,015,029.60 and 65,324,246.40 is: 97,987,937.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,673,187.20 : 328,015,029.60 = 65,324,246.40 : x
  2. Step 2: Convert to fraction form
    218,673,187.20/328,015,029.60 = 65,324,246.40/x
  3. Step 3: Cross multiply
    218,673,187.20x = 328,015,029.60 × 65,324,246.40
  4. Step 4: Simplify right side
    218,673,187.20x = 21,427,334,616,493,696
  5. Step 5: Solve for x
    x = 21,427,334,616,493,696/218,673,187.20
  6. Step 6: Final answer
    x = 97,987,937.57

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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.