Home / 15,338,149.30-21,168,520.53-8,811,766.42

Finding the Fourth Proportional to 15,338,149.30, 21,168,520.53 and 8,811,766.42

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Solution

The fourth proportional to 15,338,149.30, 21,168,520.53 and 8,811,766.42 is: 12,161,314.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,338,149.30 : 21,168,520.53 = 8,811,766.42 : x
  2. Step 2: Convert to fraction form
    15,338,149.30/21,168,520.53 = 8,811,766.42/x
  3. Step 3: Cross multiply
    15,338,149.30x = 21,168,520.53 × 8,811,766.42
  4. Step 4: Simplify right side
    15,338,149.30x = 186,532,058,367,334.62
  5. Step 5: Solve for x
    x = 186,532,058,367,334.62/15,338,149.30
  6. Step 6: Final answer
    x = 12,161,314.56

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1.5x scale

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.