Home / 40,830,900.60-61,231,605.30-20,629,428.60

Finding the Fourth Proportional to 40,830,900.60, 61,231,605.30 and 20,629,428.60

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Solution

The fourth proportional to 40,830,900.60, 61,231,605.30 and 20,629,428.60 is: 30,936,692.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,830,900.60 : 61,231,605.30 = 20,629,428.60 : x
  2. Step 2: Convert to fraction form
    40,830,900.60/61,231,605.30 = 20,629,428.60/x
  3. Step 3: Cross multiply
    40,830,900.60x = 61,231,605.30 × 20,629,428.60
  4. Step 4: Simplify right side
    40,830,900.60x = 1,263,173,029,599,731.50
  5. Step 5: Solve for x
    x = 1,263,173,029,599,731.50/40,830,900.60
  6. Step 6: Final answer
    x = 30,936,692.82

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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.