Home / 141,621,980.50-212,198,126.54-86,121,932.23

Finding the Fourth Proportional to 141,621,980.50, 212,198,126.54 and 86,121,932.23

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Solution

The fourth proportional to 141,621,980.50, 212,198,126.54 and 86,121,932.23 is: 129,040,086.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,621,980.50 : 212,198,126.54 = 86,121,932.23 : x
  2. Step 2: Convert to fraction form
    141,621,980.50/212,198,126.54 = 86,121,932.23/x
  3. Step 3: Cross multiply
    141,621,980.50x = 212,198,126.54 × 86,121,932.23
  4. Step 4: Simplify right side
    141,621,980.50x = 18,274,912,673,531,212
  5. Step 5: Solve for x
    x = 18,274,912,673,531,212/141,621,980.50
  6. Step 6: Final answer
    x = 129,040,086.92

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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.