Home / 61,721,551.25-92,517,518.03-20,766,771.61

Finding the Fourth Proportional to 61,721,551.25, 92,517,518.03 and 20,766,771.61

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Solution

The fourth proportional to 61,721,551.25, 92,517,518.03 and 20,766,771.61 is: 31,128,351.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,721,551.25 : 92,517,518.03 = 20,766,771.61 : x
  2. Step 2: Convert to fraction form
    61,721,551.25/92,517,518.03 = 20,766,771.61/x
  3. Step 3: Cross multiply
    61,721,551.25x = 92,517,518.03 × 20,766,771.61
  4. Step 4: Simplify right side
    61,721,551.25x = 1,921,290,166,764,924.75
  5. Step 5: Solve for x
    x = 1,921,290,166,764,924.75/61,721,551.25
  6. Step 6: Final answer
    x = 31,128,351.90

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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.