Home / 15,381,743.13-21,220,394.18-8,853,810.57

Finding the Fourth Proportional to 15,381,743.13, 21,220,394.18 and 8,853,810.57

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Solution

The fourth proportional to 15,381,743.13, 21,220,394.18 and 8,853,810.57 is: 12,214,568.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,381,743.13 : 21,220,394.18 = 8,853,810.57 : x
  2. Step 2: Convert to fraction form
    15,381,743.13/21,220,394.18 = 8,853,810.57/x
  3. Step 3: Cross multiply
    15,381,743.13x = 21,220,394.18 × 8,853,810.57
  4. Step 4: Simplify right side
    15,381,743.13x = 187,881,350,246,181.44
  5. Step 5: Solve for x
    x = 187,881,350,246,181.44/15,381,743.13
  6. Step 6: Final answer
    x = 12,214,568.18

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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.