Home / 69,186,500.57-103,801,339.25-20,666,268.97

Finding the Fourth Proportional to 69,186,500.57, 103,801,339.25 and 20,666,268.97

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Solution

The fourth proportional to 69,186,500.57, 103,801,339.25 and 20,666,268.97 is: 31,005,851.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,186,500.57 : 103,801,339.25 = 20,666,268.97 : x
  2. Step 2: Convert to fraction form
    69,186,500.57/103,801,339.25 = 20,666,268.97/x
  3. Step 3: Cross multiply
    69,186,500.57x = 103,801,339.25 × 20,666,268.97
  4. Step 4: Simplify right side
    69,186,500.57x = 2,145,186,396,386,718
  5. Step 5: Solve for x
    x = 2,145,186,396,386,718/69,186,500.57
  6. Step 6: Final answer
    x = 31,005,851.99

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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.