Home / 218,666,176.50-328,120,331.62-131,012,291

Finding the Fourth Proportional to 218,666,176.50, 328,120,331.62 and 131,012,291

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Solution

The fourth proportional to 218,666,176.50, 328,120,331.62 and 131,012,291 is: 196,590,972.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,666,176.50 : 328,120,331.62 = 131,012,291 : x
  2. Step 2: Convert to fraction form
    218,666,176.50/328,120,331.62 = 131,012,291/x
  3. Step 3: Cross multiply
    218,666,176.50x = 328,120,331.62 × 131,012,291
  4. Step 4: Simplify right side
    218,666,176.50x = 42,987,796,369,215,944
  5. Step 5: Solve for x
    x = 42,987,796,369,215,944/218,666,176.50
  6. Step 6: Final answer
    x = 196,590,972.86

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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.