Home / 66,421,842.80-99,629,221.24-17,898,917.54

Finding the Fourth Proportional to 66,421,842.80, 99,629,221.24 and 17,898,917.54

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Solution

The fourth proportional to 66,421,842.80, 99,629,221.24 and 17,898,917.54 is: 26,847,421.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,421,842.80 : 99,629,221.24 = 17,898,917.54 : x
  2. Step 2: Convert to fraction form
    66,421,842.80/99,629,221.24 = 17,898,917.54/x
  3. Step 3: Cross multiply
    66,421,842.80x = 99,629,221.24 × 17,898,917.54
  4. Step 4: Simplify right side
    66,421,842.80x = 1,783,255,215,549,176.25
  5. Step 5: Solve for x
    x = 1,783,255,215,549,176.25/66,421,842.80
  6. Step 6: Final answer
    x = 26,847,421.58

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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.