Home / 66,580,066.75-99,870,100.13-18,711,010.75

Finding the Fourth Proportional to 66,580,066.75, 99,870,100.13 and 18,711,010.75

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Solution

The fourth proportional to 66,580,066.75, 99,870,100.13 and 18,711,010.75 is: 28,066,516.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,580,066.75 : 99,870,100.13 = 18,711,010.75 : x
  2. Step 2: Convert to fraction form
    66,580,066.75/99,870,100.13 = 18,711,010.75/x
  3. Step 3: Cross multiply
    66,580,066.75x = 99,870,100.13 × 18,711,010.75
  4. Step 4: Simplify right side
    66,580,066.75x = 1,868,670,517,042,451.25
  5. Step 5: Solve for x
    x = 1,868,670,517,042,451.25/66,580,066.75
  6. Step 6: Final answer
    x = 28,066,516.13

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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.