Home / 680,205,028.18-1,020,469,459.70-220,143,197.50

Finding the Fourth Proportional to 680,205,028.18, 1,020,469,459.70 and 220,143,197.50

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Solution

The fourth proportional to 680,205,028.18, 1,020,469,459.70 and 220,143,197.50 is: 330,267,199.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,205,028.18 : 1,020,469,459.70 = 220,143,197.50 : x
  2. Step 2: Convert to fraction form
    680,205,028.18/1,020,469,459.70 = 220,143,197.50/x
  3. Step 3: Cross multiply
    680,205,028.18x = 1,020,469,459.70 × 220,143,197.50
  4. Step 4: Simplify right side
    680,205,028.18x = 224,649,409,809,455,392
  5. Step 5: Solve for x
    x = 224,649,409,809,455,392/680,205,028.18
  6. Step 6: Final answer
    x = 330,267,199.60

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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.