Home / 66,188,820.80-99,283,231.20-18,319,764.80

Finding the Fourth Proportional to 66,188,820.80, 99,283,231.20 and 18,319,764.80

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Solution

The fourth proportional to 66,188,820.80, 99,283,231.20 and 18,319,764.80 is: 27,479,647.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,188,820.80 : 99,283,231.20 = 18,319,764.80 : x
  2. Step 2: Convert to fraction form
    66,188,820.80/99,283,231.20 = 18,319,764.80/x
  3. Step 3: Cross multiply
    66,188,820.80x = 99,283,231.20 × 18,319,764.80
  4. Step 4: Simplify right side
    66,188,820.80x = 1,818,845,444,168,022
  5. Step 5: Solve for x
    x = 1,818,845,444,168,022/66,188,820.80
  6. Step 6: Final answer
    x = 27,479,647.20

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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.