Home / 38,147,143.89-52,642,458.24-20,743,336.88

Finding the Fourth Proportional to 38,147,143.89, 52,642,458.24 and 20,743,336.88

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Solution

The fourth proportional to 38,147,143.89, 52,642,458.24 and 20,743,336.88 is: 28,625,478.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,147,143.89 : 52,642,458.24 = 20,743,336.88 : x
  2. Step 2: Convert to fraction form
    38,147,143.89/52,642,458.24 = 20,743,336.88/x
  3. Step 3: Cross multiply
    38,147,143.89x = 52,642,458.24 × 20,743,336.88
  4. Step 4: Simplify right side
    38,147,143.89x = 1,091,980,245,436,742.62
  5. Step 5: Solve for x
    x = 1,091,980,245,436,742.62/38,147,143.89
  6. Step 6: Final answer
    x = 28,625,478.45

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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.