Home / 170,928,046.80-256,385,849.40-68,664,315.60

Finding the Fourth Proportional to 170,928,046.80, 256,385,849.40 and 68,664,315.60

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Solution

The fourth proportional to 170,928,046.80, 256,385,849.40 and 68,664,315.60 is: 102,993,974.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,928,046.80 : 256,385,849.40 = 68,664,315.60 : x
  2. Step 2: Convert to fraction form
    170,928,046.80/256,385,849.40 = 68,664,315.60/x
  3. Step 3: Cross multiply
    170,928,046.80x = 256,385,849.40 × 68,664,315.60
  4. Step 4: Simplify right side
    170,928,046.80x = 17,604,558,878,575,670
  5. Step 5: Solve for x
    x = 17,604,558,878,575,670/170,928,046.80
  6. Step 6: Final answer
    x = 102,993,974.41

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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.