Home / 208,713,660.80-313,070,491.20-131,115,401.60

Finding the Fourth Proportional to 208,713,660.80, 313,070,491.20 and 131,115,401.60

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Solution

The fourth proportional to 208,713,660.80, 313,070,491.20 and 131,115,401.60 is: 196,673,102.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,713,660.80 : 313,070,491.20 = 131,115,401.60 : x
  2. Step 2: Convert to fraction form
    208,713,660.80/313,070,491.20 = 131,115,401.60/x
  3. Step 3: Cross multiply
    208,713,660.80x = 313,070,491.20 × 131,115,401.60
  4. Step 4: Simplify right side
    208,713,660.80x = 41,048,363,182,797,264
  5. Step 5: Solve for x
    x = 41,048,363,182,797,264/208,713,660.80
  6. Step 6: Final answer
    x = 196,673,102.40

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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.