Home / 725,015,458.80-1,084,972,271.40-663,793,455.60

Finding the Fourth Proportional to 725,015,458.80, 1,084,972,271.40 and 663,793,455.60

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Solution

The fourth proportional to 725,015,458.80, 1,084,972,271.40 and 663,793,455.60 is: 993,354,671.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,015,458.80 : 1,084,972,271.40 = 663,793,455.60 : x
  2. Step 2: Convert to fraction form
    725,015,458.80/1,084,972,271.40 = 663,793,455.60/x
  3. Step 3: Cross multiply
    725,015,458.80x = 1,084,972,271.40 × 663,793,455.60
  4. Step 4: Simplify right side
    725,015,458.80x = 720,197,493,262,787,200
  5. Step 5: Solve for x
    x = 720,197,493,262,787,200/725,015,458.80
  6. Step 6: Final answer
    x = 993,354,671.99

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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.