Home / 77,122,185.80-115,682,779.26-19,613,960

Finding the Fourth Proportional to 77,122,185.80, 115,682,779.26 and 19,613,960

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Solution

The fourth proportional to 77,122,185.80, 115,682,779.26 and 19,613,960 is: 29,420,812.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,122,185.80 : 115,682,779.26 = 19,613,960 : x
  2. Step 2: Convert to fraction form
    77,122,185.80/115,682,779.26 = 19,613,960/x
  3. Step 3: Cross multiply
    77,122,185.80x = 115,682,779.26 × 19,613,960
  4. Step 4: Simplify right side
    77,122,185.80x = 2,268,997,405,094,469.50
  5. Step 5: Solve for x
    x = 2,268,997,405,094,469.50/77,122,185.80
  6. Step 6: Final answer
    x = 29,420,812.98

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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.