Home / 20,718,556.24-28,593,697.80-12,019,389.52

Finding the Fourth Proportional to 20,718,556.24, 28,593,697.80 and 12,019,389.52

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Solution

The fourth proportional to 20,718,556.24, 28,593,697.80 and 12,019,389.52 is: 16,587,970.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,718,556.24 : 28,593,697.80 = 12,019,389.52 : x
  2. Step 2: Convert to fraction form
    20,718,556.24/28,593,697.80 = 12,019,389.52/x
  3. Step 3: Cross multiply
    20,718,556.24x = 28,593,697.80 × 12,019,389.52
  4. Step 4: Simplify right side
    20,718,556.24x = 343,678,791,675,367.06
  5. Step 5: Solve for x
    x = 343,678,791,675,367.06/20,718,556.24
  6. Step 6: Final answer
    x = 16,587,970.11

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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.