Home / 20,438,851.32-28,204,665.30-11,730,894.84

Finding the Fourth Proportional to 20,438,851.32, 28,204,665.30 and 11,730,894.84

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Solution

The fourth proportional to 20,438,851.32, 28,204,665.30 and 11,730,894.84 is: 16,188,089.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,438,851.32 : 28,204,665.30 = 11,730,894.84 : x
  2. Step 2: Convert to fraction form
    20,438,851.32/28,204,665.30 = 11,730,894.84/x
  3. Step 3: Cross multiply
    20,438,851.32x = 28,204,665.30 × 11,730,894.84
  4. Step 4: Simplify right side
    20,438,851.32x = 330,865,962,631,697.06
  5. Step 5: Solve for x
    x = 330,865,962,631,697.06/20,438,851.32
  6. Step 6: Final answer
    x = 16,188,089.90

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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.