Home / 658,315,065.60-987,441,105.60-221,572,915.20

Finding the Fourth Proportional to 658,315,065.60, 987,441,105.60 and 221,572,915.20

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Solution

The fourth proportional to 658,315,065.60, 987,441,105.60 and 221,572,915.20 is: 332,348,773.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,315,065.60 : 987,441,105.60 = 221,572,915.20 : x
  2. Step 2: Convert to fraction form
    658,315,065.60/987,441,105.60 = 221,572,915.20/x
  3. Step 3: Cross multiply
    658,315,065.60x = 987,441,105.60 × 221,572,915.20
  4. Step 4: Simplify right side
    658,315,065.60x = 218,790,204,356,103,040
  5. Step 5: Solve for x
    x = 218,790,204,356,103,040/658,315,065.60
  6. Step 6: Final answer
    x = 332,348,773.09

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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.