Home / 305,241,481.53-457,865,056.05-86,891,815.69

Finding the Fourth Proportional to 305,241,481.53, 457,865,056.05 and 86,891,815.69

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Solution

The fourth proportional to 305,241,481.53, 457,865,056.05 and 86,891,815.69 is: 130,338,530.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,241,481.53 : 457,865,056.05 = 86,891,815.69 : x
  2. Step 2: Convert to fraction form
    305,241,481.53/457,865,056.05 = 86,891,815.69/x
  3. Step 3: Cross multiply
    305,241,481.53x = 457,865,056.05 × 86,891,815.69
  4. Step 4: Simplify right side
    305,241,481.53x = 39,784,726,061,373,136
  5. Step 5: Solve for x
    x = 39,784,726,061,373,136/305,241,481.53
  6. Step 6: Final answer
    x = 130,338,530.21

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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.