Home / 27,148,679.09-40,668,493.76-12,555,143.24

Finding the Fourth Proportional to 27,148,679.09, 40,668,493.76 and 12,555,143.24

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Solution

The fourth proportional to 27,148,679.09, 40,668,493.76 and 12,555,143.24 is: 18,807,499.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,148,679.09 : 40,668,493.76 = 12,555,143.24 : x
  2. Step 2: Convert to fraction form
    27,148,679.09/40,668,493.76 = 12,555,143.24/x
  3. Step 3: Cross multiply
    27,148,679.09x = 40,668,493.76 × 12,555,143.24
  4. Step 4: Simplify right side
    27,148,679.09x = 510,598,764,245,728
  5. Step 5: Solve for x
    x = 510,598,764,245,728/27,148,679.09
  6. Step 6: Final answer
    x = 18,807,499.35

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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.