Home / 21,248,415.66-31,872,505.38-18,361,002.60

Finding the Fourth Proportional to 21,248,415.66, 31,872,505.38 and 18,361,002.60

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Solution

The fourth proportional to 21,248,415.66, 31,872,505.38 and 18,361,002.60 is: 27,541,401.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,248,415.66 : 31,872,505.38 = 18,361,002.60 : x
  2. Step 2: Convert to fraction form
    21,248,415.66/31,872,505.38 = 18,361,002.60/x
  3. Step 3: Cross multiply
    21,248,415.66x = 31,872,505.38 × 18,361,002.60
  4. Step 4: Simplify right side
    21,248,415.66x = 585,211,154,150,694
  5. Step 5: Solve for x
    x = 585,211,154,150,694/21,248,415.66
  6. Step 6: Final answer
    x = 27,541,401.84

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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.