Home / 208,635,861.60-312,939,795.60-55,278,626.40

Finding the Fourth Proportional to 208,635,861.60, 312,939,795.60 and 55,278,626.40

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Solution

The fourth proportional to 208,635,861.60, 312,939,795.60 and 55,278,626.40 is: 82,914,231.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,635,861.60 : 312,939,795.60 = 55,278,626.40 : x
  2. Step 2: Convert to fraction form
    208,635,861.60/312,939,795.60 = 55,278,626.40/x
  3. Step 3: Cross multiply
    208,635,861.60x = 312,939,795.60 × 55,278,626.40
  4. Step 4: Simplify right side
    208,635,861.60x = 17,298,882,046,664,764
  5. Step 5: Solve for x
    x = 17,298,882,046,664,764/208,635,861.60
  6. Step 6: Final answer
    x = 82,914,231.11

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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.