Home / 66,580,081.75-99,870,122.64-18,711,025.75

Finding the Fourth Proportional to 66,580,081.75, 99,870,122.64 and 18,711,025.75

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Solution

The fourth proportional to 66,580,081.75, 99,870,122.64 and 18,711,025.75 is: 28,066,538.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,580,081.75 : 99,870,122.64 = 18,711,025.75 : x
  2. Step 2: Convert to fraction form
    66,580,081.75/99,870,122.64 = 18,711,025.75/x
  3. Step 3: Cross multiply
    66,580,081.75x = 99,870,122.64 × 18,711,025.75
  4. Step 4: Simplify right side
    66,580,081.75x = 1,868,672,436,372,698
  5. Step 5: Solve for x
    x = 1,868,672,436,372,698/66,580,081.75
  6. Step 6: Final answer
    x = 28,066,538.63

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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.