Home / 7,881,328.20-11,821,992.30-3,087,424.20

Finding the Fourth Proportional to 7,881,328.20, 11,821,992.30 and 3,087,424.20

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Solution

The fourth proportional to 7,881,328.20, 11,821,992.30 and 3,087,424.20 is: 4,631,136.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,881,328.20 : 11,821,992.30 = 3,087,424.20 : x
  2. Step 2: Convert to fraction form
    7,881,328.20/11,821,992.30 = 3,087,424.20/x
  3. Step 3: Cross multiply
    7,881,328.20x = 11,821,992.30 × 3,087,424.20
  4. Step 4: Simplify right side
    7,881,328.20x = 36,499,505,119,233.66
  5. Step 5: Solve for x
    x = 36,499,505,119,233.66/7,881,328.20
  6. Step 6: Final answer
    x = 4,631,136.30

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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.