Home / 20,052,221.76-30,074,777.15-9,119,850.69

Finding the Fourth Proportional to 20,052,221.76, 30,074,777.15 and 9,119,850.69

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Solution

The fourth proportional to 20,052,221.76, 30,074,777.15 and 9,119,850.69 is: 13,678,158.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,052,221.76 : 30,074,777.15 = 9,119,850.69 : x
  2. Step 2: Convert to fraction form
    20,052,221.76/30,074,777.15 = 9,119,850.69/x
  3. Step 3: Cross multiply
    20,052,221.76x = 30,074,777.15 × 9,119,850.69
  4. Step 4: Simplify right side
    20,052,221.76x = 274,277,477,097,424.47
  5. Step 5: Solve for x
    x = 274,277,477,097,424.47/20,052,221.76
  6. Step 6: Final answer
    x = 13,678,158.98

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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.