Home / 208,715,344.80-313,073,017.20-131,117,085.60

Finding the Fourth Proportional to 208,715,344.80, 313,073,017.20 and 131,117,085.60

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Solution

The fourth proportional to 208,715,344.80, 313,073,017.20 and 131,117,085.60 is: 196,675,628.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,715,344.80 : 313,073,017.20 = 131,117,085.60 : x
  2. Step 2: Convert to fraction form
    208,715,344.80/313,073,017.20 = 131,117,085.60/x
  3. Step 3: Cross multiply
    208,715,344.80x = 313,073,017.20 × 131,117,085.60
  4. Step 4: Simplify right side
    208,715,344.80x = 41,049,221,595,262,672
  5. Step 5: Solve for x
    x = 41,049,221,595,262,672/208,715,344.80
  6. Step 6: Final answer
    x = 196,675,628.40

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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.