Home / 18,438,643.20-27,657,964.80-7,799,692.80

Finding the Fourth Proportional to 18,438,643.20, 27,657,964.80 and 7,799,692.80

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Solution

The fourth proportional to 18,438,643.20, 27,657,964.80 and 7,799,692.80 is: 11,699,539.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,438,643.20 : 27,657,964.80 = 7,799,692.80 : x
  2. Step 2: Convert to fraction form
    18,438,643.20/27,657,964.80 = 7,799,692.80/x
  3. Step 3: Cross multiply
    18,438,643.20x = 27,657,964.80 × 7,799,692.80
  4. Step 4: Simplify right side
    18,438,643.20x = 215,723,628,913,213.44
  5. Step 5: Solve for x
    x = 215,723,628,913,213.44/18,438,643.20
  6. Step 6: Final answer
    x = 11,699,539.20

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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.