Home / 680,160,400.20-1,020,240,600.30-220,145,070.60

Finding the Fourth Proportional to 680,160,400.20, 1,020,240,600.30 and 220,145,070.60

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Solution

The fourth proportional to 680,160,400.20, 1,020,240,600.30 and 220,145,070.60 is: 330,217,605.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,160,400.20 : 1,020,240,600.30 = 220,145,070.60 : x
  2. Step 2: Convert to fraction form
    680,160,400.20/1,020,240,600.30 = 220,145,070.60/x
  3. Step 3: Cross multiply
    680,160,400.20x = 1,020,240,600.30 × 220,145,070.60
  4. Step 4: Simplify right side
    680,160,400.20x = 224,600,938,982,029,856
  5. Step 5: Solve for x
    x = 224,600,938,982,029,856/680,160,400.20
  6. Step 6: Final answer
    x = 330,217,605.90

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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.