Home / 15,138,943.38-20,888,623.17-8,699,171.22

Finding the Fourth Proportional to 15,138,943.38, 20,888,623.17 and 8,699,171.22

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Solution

The fourth proportional to 15,138,943.38, 20,888,623.17 and 8,699,171.22 is: 12,003,064.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,138,943.38 : 20,888,623.17 = 8,699,171.22 : x
  2. Step 2: Convert to fraction form
    15,138,943.38/20,888,623.17 = 8,699,171.22/x
  3. Step 3: Cross multiply
    15,138,943.38x = 20,888,623.17 × 8,699,171.22
  4. Step 4: Simplify right side
    15,138,943.38x = 181,713,709,505,889.19
  5. Step 5: Solve for x
    x = 181,713,709,505,889.19/15,138,943.38
  6. Step 6: Final answer
    x = 12,003,064.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.