Home / 15,343,423.09-21,167,281.86-9,383,091.55

Finding the Fourth Proportional to 15,343,423.09, 21,167,281.86 and 9,383,091.55

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Solution

The fourth proportional to 15,343,423.09, 21,167,281.86 and 9,383,091.55 is: 12,944,604.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,343,423.09 : 21,167,281.86 = 9,383,091.55 : x
  2. Step 2: Convert to fraction form
    15,343,423.09/21,167,281.86 = 9,383,091.55/x
  3. Step 3: Cross multiply
    15,343,423.09x = 21,167,281.86 × 9,383,091.55
  4. Step 4: Simplify right side
    15,343,423.09x = 198,614,543,557,034.28
  5. Step 5: Solve for x
    x = 198,614,543,557,034.28/15,343,423.09
  6. Step 6: Final answer
    x = 12,944,604.50

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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.