Home / 13,201,967.20-18,222,514.57-7,974,144.63

Finding the Fourth Proportional to 13,201,967.20, 18,222,514.57 and 7,974,144.63

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Solution

The fourth proportional to 13,201,967.20, 18,222,514.57 and 7,974,144.63 is: 11,006,614.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,201,967.20 : 18,222,514.57 = 7,974,144.63 : x
  2. Step 2: Convert to fraction form
    13,201,967.20/18,222,514.57 = 7,974,144.63/x
  3. Step 3: Cross multiply
    13,201,967.20x = 18,222,514.57 × 7,974,144.63
  4. Step 4: Simplify right side
    13,201,967.20x = 145,308,966,668,575.38
  5. Step 5: Solve for x
    x = 145,308,966,668,575.38/13,201,967.20
  6. Step 6: Final answer
    x = 11,006,614.73

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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.