Home / 123,568,138.60-185,352,207.90-42,762,250.60

Finding the Fourth Proportional to 123,568,138.60, 185,352,207.90 and 42,762,250.60

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Solution

The fourth proportional to 123,568,138.60, 185,352,207.90 and 42,762,250.60 is: 64,143,375.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,568,138.60 : 185,352,207.90 = 42,762,250.60 : x
  2. Step 2: Convert to fraction form
    123,568,138.60/185,352,207.90 = 42,762,250.60/x
  3. Step 3: Cross multiply
    123,568,138.60x = 185,352,207.90 × 42,762,250.60
  4. Step 4: Simplify right side
    123,568,138.60x = 7,926,077,563,483,100
  5. Step 5: Solve for x
    x = 7,926,077,563,483,100/123,568,138.60
  6. Step 6: Final answer
    x = 64,143,375.90

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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.