Home / 20,260,556.40-30,365,029.80-8,279,756.40

Finding the Fourth Proportional to 20,260,556.40, 30,365,029.80 and 8,279,756.40

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Solution

The fourth proportional to 20,260,556.40, 30,365,029.80 and 8,279,756.40 is: 12,409,089.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,260,556.40 : 30,365,029.80 = 8,279,756.40 : x
  2. Step 2: Convert to fraction form
    20,260,556.40/30,365,029.80 = 8,279,756.40/x
  3. Step 3: Cross multiply
    20,260,556.40x = 30,365,029.80 × 8,279,756.40
  4. Step 4: Simplify right side
    20,260,556.40x = 251,415,049,822,740.75
  5. Step 5: Solve for x
    x = 251,415,049,822,740.75/20,260,556.40
  6. Step 6: Final answer
    x = 12,409,089.11

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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.