Home / 15,049,805.74-20,768,378.67-8,855,253.68

Finding the Fourth Proportional to 15,049,805.74, 20,768,378.67 and 8,855,253.68

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Solution

The fourth proportional to 15,049,805.74, 20,768,378.67 and 8,855,253.68 is: 12,220,042.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,049,805.74 : 20,768,378.67 = 8,855,253.68 : x
  2. Step 2: Convert to fraction form
    15,049,805.74/20,768,378.67 = 8,855,253.68/x
  3. Step 3: Cross multiply
    15,049,805.74x = 20,768,378.67 × 8,855,253.68
  4. Step 4: Simplify right side
    15,049,805.74x = 183,909,261,645,151
  5. Step 5: Solve for x
    x = 183,909,261,645,151/15,049,805.74
  6. Step 6: Final answer
    x = 12,220,042.23

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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.