Home / 298,340,620.80-447,510,931.20-272,512,588.20

Finding the Fourth Proportional to 298,340,620.80, 447,510,931.20 and 272,512,588.20

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Solution

The fourth proportional to 298,340,620.80, 447,510,931.20 and 272,512,588.20 is: 408,768,882.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,340,620.80 : 447,510,931.20 = 272,512,588.20 : x
  2. Step 2: Convert to fraction form
    298,340,620.80/447,510,931.20 = 272,512,588.20/x
  3. Step 3: Cross multiply
    298,340,620.80x = 447,510,931.20 × 272,512,588.20
  4. Step 4: Simplify right side
    298,340,620.80x = 121,952,362,109,104,128
  5. Step 5: Solve for x
    x = 121,952,362,109,104,128/298,340,620.80
  6. Step 6: Final answer
    x = 408,768,882.30

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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.