Home / 12,649,111.20-18,945,673.20-10,409,623.20

Finding the Fourth Proportional to 12,649,111.20, 18,945,673.20 and 10,409,623.20

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Solution

The fourth proportional to 12,649,111.20, 18,945,673.20 and 10,409,623.20 is: 15,591,397.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,649,111.20 : 18,945,673.20 = 10,409,623.20 : x
  2. Step 2: Convert to fraction form
    12,649,111.20/18,945,673.20 = 10,409,623.20/x
  3. Step 3: Cross multiply
    12,649,111.20x = 18,945,673.20 × 10,409,623.20
  4. Step 4: Simplify right side
    12,649,111.20x = 197,217,319,282,338.22
  5. Step 5: Solve for x
    x = 197,217,319,282,338.22/12,649,111.20
  6. Step 6: Final answer
    x = 15,591,397.38

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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.