Home / 13,021,288.92-17,967,727.08-7,139,375.22

Finding the Fourth Proportional to 13,021,288.92, 17,967,727.08 and 7,139,375.22

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Solution

The fourth proportional to 13,021,288.92, 17,967,727.08 and 7,139,375.22 is: 9,851,432.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,021,288.92 : 17,967,727.08 = 7,139,375.22 : x
  2. Step 2: Convert to fraction form
    13,021,288.92/17,967,727.08 = 7,139,375.22/x
  3. Step 3: Cross multiply
    13,021,288.92x = 17,967,727.08 × 7,139,375.22
  4. Step 4: Simplify right side
    13,021,288.92x = 128,278,345,474,674.94
  5. Step 5: Solve for x
    x = 128,278,345,474,674.94/13,021,288.92
  6. Step 6: Final answer
    x = 9,851,432.24

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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.