Home / 21,869,143.38-30,183,293.52-12,575,997.18

Finding the Fourth Proportional to 21,869,143.38, 30,183,293.52 and 12,575,997.18

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Solution

The fourth proportional to 21,869,143.38, 30,183,293.52 and 12,575,997.18 is: 17,357,104.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,869,143.38 : 30,183,293.52 = 12,575,997.18 : x
  2. Step 2: Convert to fraction form
    21,869,143.38/30,183,293.52 = 12,575,997.18/x
  3. Step 3: Cross multiply
    21,869,143.38x = 30,183,293.52 × 12,575,997.18
  4. Step 4: Simplify right side
    21,869,143.38x = 379,585,014,190,632.25
  5. Step 5: Solve for x
    x = 379,585,014,190,632.25/21,869,143.38
  6. Step 6: Final answer
    x = 17,357,104.83

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Double scale
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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.