Home / 15,077,218.91-20,806,546.34-8,201,684.57

Finding the Fourth Proportional to 15,077,218.91, 20,806,546.34 and 8,201,684.57

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Solution

The fourth proportional to 15,077,218.91, 20,806,546.34 and 8,201,684.57 is: 11,318,316.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,077,218.91 : 20,806,546.34 = 8,201,684.57 : x
  2. Step 2: Convert to fraction form
    15,077,218.91/20,806,546.34 = 8,201,684.57/x
  3. Step 3: Cross multiply
    15,077,218.91x = 20,806,546.34 × 8,201,684.57
  4. Step 4: Simplify right side
    15,077,218.91x = 170,648,729,988,239.47
  5. Step 5: Solve for x
    x = 170,648,729,988,239.47/15,077,218.91
  6. Step 6: Final answer
    x = 11,318,316.13

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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.