Home / 220,188,420.40-330,198,649.80-66,783,492.40

Finding the Fourth Proportional to 220,188,420.40, 330,198,649.80 and 66,783,492.40

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Solution

The fourth proportional to 220,188,420.40, 330,198,649.80 and 66,783,492.40 is: 100,149,767.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,188,420.40 : 330,198,649.80 = 66,783,492.40 : x
  2. Step 2: Convert to fraction form
    220,188,420.40/330,198,649.80 = 66,783,492.40/x
  3. Step 3: Cross multiply
    220,188,420.40x = 330,198,649.80 × 66,783,492.40
  4. Step 4: Simplify right side
    220,188,420.40x = 22,051,819,019,408,560
  5. Step 5: Solve for x
    x = 22,051,819,019,408,560/220,188,420.40
  6. Step 6: Final answer
    x = 100,149,767.09

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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.