Home / 208,605,364.80-312,684,098.40-79,162,958.40

Finding the Fourth Proportional to 208,605,364.80, 312,684,098.40 and 79,162,958.40

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Solution

The fourth proportional to 208,605,364.80, 312,684,098.40 and 79,162,958.40 is: 118,659,452.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,605,364.80 : 312,684,098.40 = 79,162,958.40 : x
  2. Step 2: Convert to fraction form
    208,605,364.80/312,684,098.40 = 79,162,958.40/x
  3. Step 3: Cross multiply
    208,605,364.80x = 312,684,098.40 × 79,162,958.40
  4. Step 4: Simplify right side
    208,605,364.80x = 24,752,998,273,980,708
  5. Step 5: Solve for x
    x = 24,752,998,273,980,708/208,605,364.80
  6. Step 6: Final answer
    x = 118,659,452.01

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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.