Home / 20,260,564.40-30,365,041.80-8,279,764.40

Finding the Fourth Proportional to 20,260,564.40, 30,365,041.80 and 8,279,764.40

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Solution

The fourth proportional to 20,260,564.40, 30,365,041.80 and 8,279,764.40 is: 12,409,101.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,260,564.40 : 30,365,041.80 = 8,279,764.40 : x
  2. Step 2: Convert to fraction form
    20,260,564.40/30,365,041.80 = 8,279,764.40/x
  3. Step 3: Cross multiply
    20,260,564.40x = 30,365,041.80 × 8,279,764.40
  4. Step 4: Simplify right side
    20,260,564.40x = 251,415,392,100,151.94
  5. Step 5: Solve for x
    x = 251,415,392,100,151.94/20,260,564.40
  6. Step 6: Final answer
    x = 12,409,101.11

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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.