Home / 15,202,451.76-20,979,556.92-8,676,962.16

Finding the Fourth Proportional to 15,202,451.76, 20,979,556.92 and 8,676,962.16

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Solution

The fourth proportional to 15,202,451.76, 20,979,556.92 and 8,676,962.16 is: 11,974,306.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,202,451.76 : 20,979,556.92 = 8,676,962.16 : x
  2. Step 2: Convert to fraction form
    15,202,451.76/20,979,556.92 = 8,676,962.16/x
  3. Step 3: Cross multiply
    15,202,451.76x = 20,979,556.92 × 8,676,962.16
  4. Step 4: Simplify right side
    15,202,451.76x = 182,038,821,528,406.16
  5. Step 5: Solve for x
    x = 182,038,821,528,406.16/15,202,451.76
  6. Step 6: Final answer
    x = 11,974,306.80

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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.