Home / 472,392,942.80-708,589,414.20-298,930,600.40

Finding the Fourth Proportional to 472,392,942.80, 708,589,414.20 and 298,930,600.40

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Solution

The fourth proportional to 472,392,942.80, 708,589,414.20 and 298,930,600.40 is: 448,395,900.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,942.80 : 708,589,414.20 = 298,930,600.40 : x
  2. Step 2: Convert to fraction form
    472,392,942.80/708,589,414.20 = 298,930,600.40/x
  3. Step 3: Cross multiply
    472,392,942.80x = 708,589,414.20 × 298,930,600.40
  4. Step 4: Simplify right side
    472,392,942.80x = 211,819,059,023,890,272
  5. Step 5: Solve for x
    x = 211,819,059,023,890,272/472,392,942.80
  6. Step 6: Final answer
    x = 448,395,900.60

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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.