Home / 680,205,027.18-1,020,469,458.20-220,143,196.50

Finding the Fourth Proportional to 680,205,027.18, 1,020,469,458.20 and 220,143,196.50

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Solution

The fourth proportional to 680,205,027.18, 1,020,469,458.20 and 220,143,196.50 is: 330,267,198.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,205,027.18 : 1,020,469,458.20 = 220,143,196.50 : x
  2. Step 2: Convert to fraction form
    680,205,027.18/1,020,469,458.20 = 220,143,196.50/x
  3. Step 3: Cross multiply
    680,205,027.18x = 1,020,469,458.20 × 220,143,196.50
  4. Step 4: Simplify right side
    680,205,027.18x = 224,649,408,458,771,136
  5. Step 5: Solve for x
    x = 224,649,408,458,771,136/680,205,027.18
  6. Step 6: Final answer
    x = 330,267,198.10

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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.