Home / 71,659,658.88-98,887,396.68-40,296,816.36

Finding the Fourth Proportional to 71,659,658.88, 98,887,396.68 and 40,296,816.36

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Solution

The fourth proportional to 71,659,658.88, 98,887,396.68 and 40,296,816.36 is: 55,607,957.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,659,658.88 : 98,887,396.68 = 40,296,816.36 : x
  2. Step 2: Convert to fraction form
    71,659,658.88/98,887,396.68 = 40,296,816.36/x
  3. Step 3: Cross multiply
    71,659,658.88x = 98,887,396.68 × 40,296,816.36
  4. Step 4: Simplify right side
    71,659,658.88x = 3,984,847,264,332,434
  5. Step 5: Solve for x
    x = 3,984,847,264,332,434/71,659,658.88
  6. Step 6: Final answer
    x = 55,607,957.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.