Home / 15,375,481.29-21,218,607-8,500,406.22

Finding the Fourth Proportional to 15,375,481.29, 21,218,607 and 8,500,406.22

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Solution

The fourth proportional to 15,375,481.29, 21,218,607 and 8,500,406.22 is: 11,730,805.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,375,481.29 : 21,218,607 = 8,500,406.22 : x
  2. Step 2: Convert to fraction form
    15,375,481.29/21,218,607 = 8,500,406.22/x
  3. Step 3: Cross multiply
    15,375,481.29x = 21,218,607 × 8,500,406.22
  4. Step 4: Simplify right side
    15,375,481.29x = 180,366,778,922,535.56
  5. Step 5: Solve for x
    x = 180,366,778,922,535.56/15,375,481.29
  6. Step 6: Final answer
    x = 11,730,805.40

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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.