Home / 15,644,780.81-21,590,795.27-8,769,264.65

Finding the Fourth Proportional to 15,644,780.81, 21,590,795.27 and 8,769,264.65

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Solution

The fourth proportional to 15,644,780.81, 21,590,795.27 and 8,769,264.65 is: 12,102,144.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,644,780.81 : 21,590,795.27 = 8,769,264.65 : x
  2. Step 2: Convert to fraction form
    15,644,780.81/21,590,795.27 = 8,769,264.65/x
  3. Step 3: Cross multiply
    15,644,780.81x = 21,590,795.27 × 8,769,264.65
  4. Step 4: Simplify right side
    15,644,780.81x = 189,335,397,682,751.91
  5. Step 5: Solve for x
    x = 189,335,397,682,751.91/15,644,780.81
  6. Step 6: Final answer
    x = 12,102,144.48

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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.