Home / 312,757,615.20-469,360,371.60-131,135,138.40

Finding the Fourth Proportional to 312,757,615.20, 469,360,371.60 and 131,135,138.40

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Solution

The fourth proportional to 312,757,615.20, 469,360,371.60 and 131,135,138.40 is: 196,796,606.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,757,615.20 : 469,360,371.60 = 131,135,138.40 : x
  2. Step 2: Convert to fraction form
    312,757,615.20/469,360,371.60 = 131,135,138.40/x
  3. Step 3: Cross multiply
    312,757,615.20x = 469,360,371.60 × 131,135,138.40
  4. Step 4: Simplify right side
    312,757,615.20x = 61,549,637,289,241,432
  5. Step 5: Solve for x
    x = 61,549,637,289,241,432/312,757,615.20
  6. Step 6: Final answer
    x = 196,796,606.37

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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.