Home / 213,695,994.20-320,437,848.78-68,110,611.80

Finding the Fourth Proportional to 213,695,994.20, 320,437,848.78 and 68,110,611.80

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Solution

The fourth proportional to 213,695,994.20, 320,437,848.78 and 68,110,611.80 is: 102,132,087.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,695,994.20 : 320,437,848.78 = 68,110,611.80 : x
  2. Step 2: Convert to fraction form
    213,695,994.20/320,437,848.78 = 68,110,611.80/x
  3. Step 3: Cross multiply
    213,695,994.20x = 320,437,848.78 × 68,110,611.80
  4. Step 4: Simplify right side
    213,695,994.20x = 21,825,217,924,281,680
  5. Step 5: Solve for x
    x = 21,825,217,924,281,680/213,695,994.20
  6. Step 6: Final answer
    x = 102,132,087.25

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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.