Home / 66,199,609.05-99,299,413.58-20,761,330.65

Finding the Fourth Proportional to 66,199,609.05, 99,299,413.58 and 20,761,330.65

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Solution

The fourth proportional to 66,199,609.05, 99,299,413.58 and 20,761,330.65 is: 31,141,995.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,199,609.05 : 99,299,413.58 = 20,761,330.65 : x
  2. Step 2: Convert to fraction form
    66,199,609.05/99,299,413.58 = 20,761,330.65/x
  3. Step 3: Cross multiply
    66,199,609.05x = 99,299,413.58 × 20,761,330.65
  4. Step 4: Simplify right side
    66,199,609.05x = 2,061,587,958,581,673.50
  5. Step 5: Solve for x
    x = 2,061,587,958,581,673.50/66,199,609.05
  6. Step 6: Final answer
    x = 31,141,995.98

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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.