Home / 61,002,171.60-91,503,257.40-20,612,072.40

Finding the Fourth Proportional to 61,002,171.60, 91,503,257.40 and 20,612,072.40

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Solution

The fourth proportional to 61,002,171.60, 91,503,257.40 and 20,612,072.40 is: 30,918,108.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,002,171.60 : 91,503,257.40 = 20,612,072.40 : x
  2. Step 2: Convert to fraction form
    61,002,171.60/91,503,257.40 = 20,612,072.40/x
  3. Step 3: Cross multiply
    61,002,171.60x = 91,503,257.40 × 20,612,072.40
  4. Step 4: Simplify right side
    61,002,171.60x = 1,886,071,766,364,635.75
  5. Step 5: Solve for x
    x = 1,886,071,766,364,635.75/61,002,171.60
  6. Step 6: Final answer
    x = 30,918,108.60

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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.