Home / 15,099,349.22-20,839,468.49-8,905,076.78

Finding the Fourth Proportional to 15,099,349.22, 20,839,468.49 and 8,905,076.78

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Solution

The fourth proportional to 15,099,349.22, 20,839,468.49 and 8,905,076.78 is: 12,290,401.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,099,349.22 : 20,839,468.49 = 8,905,076.78 : x
  2. Step 2: Convert to fraction form
    15,099,349.22/20,839,468.49 = 8,905,076.78/x
  3. Step 3: Cross multiply
    15,099,349.22x = 20,839,468.49 × 8,905,076.78
  4. Step 4: Simplify right side
    15,099,349.22x = 185,577,066,809,117.94
  5. Step 5: Solve for x
    x = 185,577,066,809,117.94/15,099,349.22
  6. Step 6: Final answer
    x = 12,290,401.67

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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.