Home / 278,599,658.40-417,421,190.70-181,505,387.70

Finding the Fourth Proportional to 278,599,658.40, 417,421,190.70 and 181,505,387.70

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Solution

The fourth proportional to 278,599,658.40, 417,421,190.70 and 181,505,387.70 is: 271,946,475.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,599,658.40 : 417,421,190.70 = 181,505,387.70 : x
  2. Step 2: Convert to fraction form
    278,599,658.40/417,421,190.70 = 181,505,387.70/x
  3. Step 3: Cross multiply
    278,599,658.40x = 417,421,190.70 × 181,505,387.70
  4. Step 4: Simplify right side
    278,599,658.40x = 75,764,195,052,199,120
  5. Step 5: Solve for x
    x = 75,764,195,052,199,120/278,599,658.40
  6. Step 6: Final answer
    x = 271,946,475.05

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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.