Home / 391,438,600.20-587,157,900.30-262,444,091.40

Finding the Fourth Proportional to 391,438,600.20, 587,157,900.30 and 262,444,091.40

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Solution

The fourth proportional to 391,438,600.20, 587,157,900.30 and 262,444,091.40 is: 393,666,137.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,438,600.20 : 587,157,900.30 = 262,444,091.40 : x
  2. Step 2: Convert to fraction form
    391,438,600.20/587,157,900.30 = 262,444,091.40/x
  3. Step 3: Cross multiply
    391,438,600.20x = 587,157,900.30 × 262,444,091.40
  4. Step 4: Simplify right side
    391,438,600.20x = 154,096,121,652,565,280
  5. Step 5: Solve for x
    x = 154,096,121,652,565,280/391,438,600.20
  6. Step 6: Final answer
    x = 393,666,137.10

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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.