Home / 81,965,824.40-123,090,454.20-43,702,072.40

Finding the Fourth Proportional to 81,965,824.40, 123,090,454.20 and 43,702,072.40

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Solution

The fourth proportional to 81,965,824.40, 123,090,454.20 and 43,702,072.40 is: 65,628,668.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,965,824.40 : 123,090,454.20 = 43,702,072.40 : x
  2. Step 2: Convert to fraction form
    81,965,824.40/123,090,454.20 = 43,702,072.40/x
  3. Step 3: Cross multiply
    81,965,824.40x = 123,090,454.20 × 43,702,072.40
  4. Step 4: Simplify right side
    81,965,824.40x = 5,379,307,941,197,284
  5. Step 5: Solve for x
    x = 5,379,307,941,197,284/81,965,824.40
  6. Step 6: Final answer
    x = 65,628,668.78

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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.