Home / 20,623,561.76-30,935,145.64-12,538,769.52

Finding the Fourth Proportional to 20,623,561.76, 30,935,145.64 and 12,538,769.52

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Solution

The fourth proportional to 20,623,561.76, 30,935,145.64 and 12,538,769.52 is: 18,808,034.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,623,561.76 : 30,935,145.64 = 12,538,769.52 : x
  2. Step 2: Convert to fraction form
    20,623,561.76/30,935,145.64 = 12,538,769.52/x
  3. Step 3: Cross multiply
    20,623,561.76x = 30,935,145.64 × 12,538,769.52
  4. Step 4: Simplify right side
    20,623,561.76x = 387,888,661,247,592.88
  5. Step 5: Solve for x
    x = 387,888,661,247,592.88/20,623,561.76
  6. Step 6: Final answer
    x = 18,808,034.51

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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.