Home / 99,375,384.12-137,142,556.14-55,325,180.71

Finding the Fourth Proportional to 99,375,384.12, 137,142,556.14 and 55,325,180.71

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Solution

The fourth proportional to 99,375,384.12, 137,142,556.14 and 55,325,180.71 is: 76,351,269.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,375,384.12 : 137,142,556.14 = 55,325,180.71 : x
  2. Step 2: Convert to fraction form
    99,375,384.12/137,142,556.14 = 55,325,180.71/x
  3. Step 3: Cross multiply
    99,375,384.12x = 137,142,556.14 × 55,325,180.71
  4. Step 4: Simplify right side
    99,375,384.12x = 7,587,436,701,476,819
  5. Step 5: Solve for x
    x = 7,587,436,701,476,819/99,375,384.12
  6. Step 6: Final answer
    x = 76,351,269.17

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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.