Home / 15,540,971.20-23,311,456.80-12,139,748.80

Finding the Fourth Proportional to 15,540,971.20, 23,311,456.80 and 12,139,748.80

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Solution

The fourth proportional to 15,540,971.20, 23,311,456.80 and 12,139,748.80 is: 18,209,623.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,540,971.20 : 23,311,456.80 = 12,139,748.80 : x
  2. Step 2: Convert to fraction form
    15,540,971.20/23,311,456.80 = 12,139,748.80/x
  3. Step 3: Cross multiply
    15,540,971.20x = 23,311,456.80 × 12,139,748.80
  4. Step 4: Simplify right side
    15,540,971.20x = 282,995,229,714,051.88
  5. Step 5: Solve for x
    x = 282,995,229,714,051.88/15,540,971.20
  6. Step 6: Final answer
    x = 18,209,623.20

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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.