Home / 171,499,313.76-257,104,370.64-74,381,904.80

Finding the Fourth Proportional to 171,499,313.76, 257,104,370.64 and 74,381,904.80

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Solution

The fourth proportional to 171,499,313.76, 257,104,370.64 and 74,381,904.80 is: 111,510,141.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,499,313.76 : 257,104,370.64 = 74,381,904.80 : x
  2. Step 2: Convert to fraction form
    171,499,313.76/257,104,370.64 = 74,381,904.80/x
  3. Step 3: Cross multiply
    171,499,313.76x = 257,104,370.64 × 74,381,904.80
  4. Step 4: Simplify right side
    171,499,313.76x = 19,123,912,820,608,392
  5. Step 5: Solve for x
    x = 19,123,912,820,608,392/171,499,313.76
  6. Step 6: Final answer
    x = 111,510,141.94

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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.