Home / 979,775,998.80-1,469,789,969.40-488,740,261.20

Finding the Fourth Proportional to 979,775,998.80, 1,469,789,969.40 and 488,740,261.20

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Solution

The fourth proportional to 979,775,998.80, 1,469,789,969.40 and 488,740,261.20 is: 733,173,229.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,775,998.80 : 1,469,789,969.40 = 488,740,261.20 : x
  2. Step 2: Convert to fraction form
    979,775,998.80/1,469,789,969.40 = 488,740,261.20/x
  3. Step 3: Cross multiply
    979,775,998.80x = 1,469,789,969.40 × 488,740,261.20
  4. Step 4: Simplify right side
    979,775,998.80x = 718,345,533,553,696,000
  5. Step 5: Solve for x
    x = 718,345,533,553,696,000/979,775,998.80
  6. Step 6: Final answer
    x = 733,173,229.83

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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.