Home / 10,020,889.90-15,040,192.20-8,585,999.20

Finding the Fourth Proportional to 10,020,889.90, 15,040,192.20 and 8,585,999.20

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Solution

The fourth proportional to 10,020,889.90, 15,040,192.20 and 8,585,999.20 is: 12,886,587.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,020,889.90 : 15,040,192.20 = 8,585,999.20 : x
  2. Step 2: Convert to fraction form
    10,020,889.90/15,040,192.20 = 8,585,999.20/x
  3. Step 3: Cross multiply
    10,020,889.90x = 15,040,192.20 × 8,585,999.20
  4. Step 4: Simplify right side
    10,020,889.90x = 129,135,078,197,046.22
  5. Step 5: Solve for x
    x = 129,135,078,197,046.22/10,020,889.90
  6. Step 6: Final answer
    x = 12,886,587.87

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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.