Home / 140,927,355.90-194,479,353-78,212,922.30

Finding the Fourth Proportional to 140,927,355.90, 194,479,353 and 78,212,922.30

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Solution

The fourth proportional to 140,927,355.90, 194,479,353 and 78,212,922.30 is: 107,933,611.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,927,355.90 : 194,479,353 = 78,212,922.30 : x
  2. Step 2: Convert to fraction form
    140,927,355.90/194,479,353 = 78,212,922.30/x
  3. Step 3: Cross multiply
    140,927,355.90x = 194,479,353 × 78,212,922.30
  4. Step 4: Simplify right side
    140,927,355.90x = 15,210,798,525,143,272
  5. Step 5: Solve for x
    x = 15,210,798,525,143,272/140,927,355.90
  6. Step 6: Final answer
    x = 107,933,611.81

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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.