Home / 171,061,009.84-256,667,797.20-78,895,187.20

Finding the Fourth Proportional to 171,061,009.84, 256,667,797.20 and 78,895,187.20

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Solution

The fourth proportional to 171,061,009.84, 256,667,797.20 and 78,895,187.20 is: 118,377,963.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,061,009.84 : 256,667,797.20 = 78,895,187.20 : x
  2. Step 2: Convert to fraction form
    171,061,009.84/256,667,797.20 = 78,895,187.20/x
  3. Step 3: Cross multiply
    171,061,009.84x = 256,667,797.20 × 78,895,187.20
  4. Step 4: Simplify right side
    171,061,009.84x = 20,249,853,908,305,636
  5. Step 5: Solve for x
    x = 20,249,853,908,305,636/171,061,009.84
  6. Step 6: Final answer
    x = 118,377,963.09

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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.