Home / 285,304,936.50-428,103,833.88-135,908,588.40

Finding the Fourth Proportional to 285,304,936.50, 428,103,833.88 and 135,908,588.40

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Solution

The fourth proportional to 285,304,936.50, 428,103,833.88 and 135,908,588.40 is: 203,932,635.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,304,936.50 : 428,103,833.88 = 135,908,588.40 : x
  2. Step 2: Convert to fraction form
    285,304,936.50/428,103,833.88 = 135,908,588.40/x
  3. Step 3: Cross multiply
    285,304,936.50x = 428,103,833.88 × 135,908,588.40
  4. Step 4: Simplify right side
    285,304,936.50x = 58,182,987,751,258,896
  5. Step 5: Solve for x
    x = 58,182,987,751,258,896/285,304,936.50
  6. Step 6: Final answer
    x = 203,932,635.95

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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.