Home / 12,258,975.10-18,375,845.52-5,438,760.22

Finding the Fourth Proportional to 12,258,975.10, 18,375,845.52 and 5,438,760.22

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Solution

The fourth proportional to 12,258,975.10, 18,375,845.52 and 5,438,760.22 is: 8,152,542.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,258,975.10 : 18,375,845.52 = 5,438,760.22 : x
  2. Step 2: Convert to fraction form
    12,258,975.10/18,375,845.52 = 5,438,760.22/x
  3. Step 3: Cross multiply
    12,258,975.10x = 18,375,845.52 × 5,438,760.22
  4. Step 4: Simplify right side
    12,258,975.10x = 99,941,817,623,041.20
  5. Step 5: Solve for x
    x = 99,941,817,623,041.20/12,258,975.10
  6. Step 6: Final answer
    x = 8,152,542.67

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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.