Home / 10,391,886.40-15,545,839.20-8,987,540.80

Finding the Fourth Proportional to 10,391,886.40, 15,545,839.20 and 8,987,540.80

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Solution

The fourth proportional to 10,391,886.40, 15,545,839.20 and 8,987,540.80 is: 13,444,995.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,391,886.40 : 15,545,839.20 = 8,987,540.80 : x
  2. Step 2: Convert to fraction form
    10,391,886.40/15,545,839.20 = 8,987,540.80/x
  3. Step 3: Cross multiply
    10,391,886.40x = 15,545,839.20 × 8,987,540.80
  4. Step 4: Simplify right side
    10,391,886.40x = 139,718,864,080,239.36
  5. Step 5: Solve for x
    x = 139,718,864,080,239.36/10,391,886.40
  6. Step 6: Final answer
    x = 13,444,995.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.