Home / 662,257,209.20-993,385,813.80-648,652,319.60

Finding the Fourth Proportional to 662,257,209.20, 993,385,813.80 and 648,652,319.60

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Solution

The fourth proportional to 662,257,209.20, 993,385,813.80 and 648,652,319.60 is: 972,978,479.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,257,209.20 : 993,385,813.80 = 648,652,319.60 : x
  2. Step 2: Convert to fraction form
    662,257,209.20/993,385,813.80 = 648,652,319.60/x
  3. Step 3: Cross multiply
    662,257,209.20x = 993,385,813.80 × 648,652,319.60
  4. Step 4: Simplify right side
    662,257,209.20x = 644,362,012,379,103,744
  5. Step 5: Solve for x
    x = 644,362,012,379,103,744/662,257,209.20
  6. Step 6: Final answer
    x = 972,978,479.40

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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.