Home / 418,228,610.40-627,342,915.60-145,508,738.40

Finding the Fourth Proportional to 418,228,610.40, 627,342,915.60 and 145,508,738.40

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Solution

The fourth proportional to 418,228,610.40, 627,342,915.60 and 145,508,738.40 is: 218,263,107.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,228,610.40 : 627,342,915.60 = 145,508,738.40 : x
  2. Step 2: Convert to fraction form
    418,228,610.40/627,342,915.60 = 145,508,738.40/x
  3. Step 3: Cross multiply
    418,228,610.40x = 627,342,915.60 × 145,508,738.40
  4. Step 4: Simplify right side
    418,228,610.40x = 91,283,876,193,133,680
  5. Step 5: Solve for x
    x = 91,283,876,193,133,680/418,228,610.40
  6. Step 6: Final answer
    x = 218,263,107.60

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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.