Home / 77,987,556.34-116,795,658.61-45,128,857.08

Finding the Fourth Proportional to 77,987,556.34, 116,795,658.61 and 45,128,857.08

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Solution

The fourth proportional to 77,987,556.34, 116,795,658.61 and 45,128,857.08 is: 67,585,841.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,987,556.34 : 116,795,658.61 = 45,128,857.08 : x
  2. Step 2: Convert to fraction form
    77,987,556.34/116,795,658.61 = 45,128,857.08/x
  3. Step 3: Cross multiply
    77,987,556.34x = 116,795,658.61 × 45,128,857.08
  4. Step 4: Simplify right side
    77,987,556.34x = 5,270,854,585,469,556
  5. Step 5: Solve for x
    x = 5,270,854,585,469,556/77,987,556.34
  6. Step 6: Final answer
    x = 67,585,841.04

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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.