Home / 140,968,028.72-211,177,268.40-79,368,899.24

Finding the Fourth Proportional to 140,968,028.72, 211,177,268.40 and 79,368,899.24

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Solution

The fourth proportional to 140,968,028.72, 211,177,268.40 and 79,368,899.24 is: 118,898,643.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,968,028.72 : 211,177,268.40 = 79,368,899.24 : x
  2. Step 2: Convert to fraction form
    140,968,028.72/211,177,268.40 = 79,368,899.24/x
  3. Step 3: Cross multiply
    140,968,028.72x = 211,177,268.40 × 79,368,899.24
  4. Step 4: Simplify right side
    140,968,028.72x = 16,760,907,337,418,036
  5. Step 5: Solve for x
    x = 16,760,907,337,418,036/140,968,028.72
  6. Step 6: Final answer
    x = 118,898,643.12

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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.