Home / 278,337,143.37-417,503,056.64-169,192,449.21

Finding the Fourth Proportional to 278,337,143.37, 417,503,056.64 and 169,192,449.21

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Solution

The fourth proportional to 278,337,143.37, 417,503,056.64 and 169,192,449.21 is: 253,787,057.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,337,143.37 : 417,503,056.64 = 169,192,449.21 : x
  2. Step 2: Convert to fraction form
    278,337,143.37/417,503,056.64 = 169,192,449.21/x
  3. Step 3: Cross multiply
    278,337,143.37x = 417,503,056.64 × 169,192,449.21
  4. Step 4: Simplify right side
    278,337,143.37x = 70,638,364,704,736,992
  5. Step 5: Solve for x
    x = 70,638,364,704,736,992/278,337,143.37
  6. Step 6: Final answer
    x = 253,787,057.84

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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.