Home / 278,337,180.12-417,503,111.76-169,192,485.96

Finding the Fourth Proportional to 278,337,180.12, 417,503,111.76 and 169,192,485.96

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Solution

The fourth proportional to 278,337,180.12, 417,503,111.76 and 169,192,485.96 is: 253,787,112.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,337,180.12 : 417,503,111.76 = 169,192,485.96 : x
  2. Step 2: Convert to fraction form
    278,337,180.12/417,503,111.76 = 169,192,485.96/x
  3. Step 3: Cross multiply
    278,337,180.12x = 417,503,111.76 × 169,192,485.96
  4. Step 4: Simplify right side
    278,337,180.12x = 70,638,389,374,710,112
  5. Step 5: Solve for x
    x = 70,638,389,374,710,112/278,337,180.12
  6. Step 6: Final answer
    x = 253,787,112.97

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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.