Home / 30,343,321.56-45,515,028.42-12,392,425.56

Finding the Fourth Proportional to 30,343,321.56, 45,515,028.42 and 12,392,425.56

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Solution

The fourth proportional to 30,343,321.56, 45,515,028.42 and 12,392,425.56 is: 18,588,657.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,343,321.56 : 45,515,028.42 = 12,392,425.56 : x
  2. Step 2: Convert to fraction form
    30,343,321.56/45,515,028.42 = 12,392,425.56/x
  3. Step 3: Cross multiply
    30,343,321.56x = 45,515,028.42 × 12,392,425.56
  4. Step 4: Simplify right side
    30,343,321.56x = 564,041,601,556,134.50
  5. Step 5: Solve for x
    x = 564,041,601,556,134.50/30,343,321.56
  6. Step 6: Final answer
    x = 18,588,657.16

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1.5x scale

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.