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Finding the Third Proportional to 4,278,045.38 and 8,909,929.13

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Solution

The third proportional to 4,278,045.38 and 8,909,929.13 is: 18,556,801.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,278,045.38 : 8,909,929.13 = 8,909,929.13 : x
  2. Step 2: Convert to fraction form
    4,278,045.38/8,909,929.13 = 8,909,929.13/x
  3. Step 3: Cross multiply
    4,278,045.38x = 8,909,929.13 × 8,909,929.13
  4. Step 4: Simplify right side
    4,278,045.38x = 79,386,837,012,523.27
  5. Step 5: Solve for x
    x = 79,386,837,012,523.27/4,278,045.38
  6. Step 6: Final answer
    x = 18,556,801.07

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.