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Finding the Third Proportional to 18,139,584 and 39,817,680

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Solution

The third proportional to 18,139,584 and 39,817,680 is: 87,402,646.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,139,584 : 39,817,680 = 39,817,680 : x
  2. Step 2: Convert to fraction form
    18,139,584/39,817,680 = 39,817,680/x
  3. Step 3: Cross multiply
    18,139,584x = 39,817,680 × 39,817,680
  4. Step 4: Simplify right side
    18,139,584x = 1,585,447,640,582,400
  5. Step 5: Solve for x
    x = 1,585,447,640,582,400/18,139,584
  6. Step 6: Final answer
    x = 87,402,646.09

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.