Home / 71,796,521.57-107,613,089.20-43,690,995.42

Finding the Fourth Proportional to 71,796,521.57, 107,613,089.20 and 43,690,995.42

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Solution

The fourth proportional to 71,796,521.57, 107,613,089.20 and 43,690,995.42 is: 65,486,779.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,796,521.57 : 107,613,089.20 = 43,690,995.42 : x
  2. Step 2: Convert to fraction form
    71,796,521.57/107,613,089.20 = 43,690,995.42/x
  3. Step 3: Cross multiply
    71,796,521.57x = 107,613,089.20 × 43,690,995.42
  4. Step 4: Simplify right side
    71,796,521.57x = 4,701,722,986,612,731
  5. Step 5: Solve for x
    x = 4,701,722,986,612,731/71,796,521.57
  6. Step 6: Final answer
    x = 65,486,779.63

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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.