Home / 66,580,067.25-99,870,100.88-18,711,011.25

Finding the Fourth Proportional to 66,580,067.25, 99,870,100.88 and 18,711,011.25

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Solution

The fourth proportional to 66,580,067.25, 99,870,100.88 and 18,711,011.25 is: 28,066,516.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,580,067.25 : 99,870,100.88 = 18,711,011.25 : x
  2. Step 2: Convert to fraction form
    66,580,067.25/99,870,100.88 = 18,711,011.25/x
  3. Step 3: Cross multiply
    66,580,067.25x = 99,870,100.88 × 18,711,011.25
  4. Step 4: Simplify right side
    66,580,067.25x = 1,868,670,581,010,759.75
  5. Step 5: Solve for x
    x = 1,868,670,581,010,759.75/66,580,067.25
  6. Step 6: Final answer
    x = 28,066,516.88

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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.