Home / 15,861,479.68-21,888,765.80-8,985,945.52

Finding the Fourth Proportional to 15,861,479.68, 21,888,765.80 and 8,985,945.52

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Solution

The fourth proportional to 15,861,479.68, 21,888,765.80 and 8,985,945.52 is: 12,400,561.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,861,479.68 : 21,888,765.80 = 8,985,945.52 : x
  2. Step 2: Convert to fraction form
    15,861,479.68/21,888,765.80 = 8,985,945.52/x
  3. Step 3: Cross multiply
    15,861,479.68x = 21,888,765.80 × 8,985,945.52
  4. Step 4: Simplify right side
    15,861,479.68x = 196,691,256,978,839.22
  5. Step 5: Solve for x
    x = 196,691,256,978,839.22/15,861,479.68
  6. Step 6: Final answer
    x = 12,400,561.67

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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.