Home / 662,257,208.20-993,385,812.30-648,652,318.60

Finding the Fourth Proportional to 662,257,208.20, 993,385,812.30 and 648,652,318.60

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Solution

The fourth proportional to 662,257,208.20, 993,385,812.30 and 648,652,318.60 is: 972,978,477.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,257,208.20 : 993,385,812.30 = 648,652,318.60 : x
  2. Step 2: Convert to fraction form
    662,257,208.20/993,385,812.30 = 648,652,318.60/x
  3. Step 3: Cross multiply
    662,257,208.20x = 993,385,812.30 × 648,652,318.60
  4. Step 4: Simplify right side
    662,257,208.20x = 644,362,010,412,739,328
  5. Step 5: Solve for x
    x = 644,362,010,412,739,328/662,257,208.20
  6. Step 6: Final answer
    x = 972,978,477.90

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Double scale
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Similar ratio
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1.5x scale

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.