Home / 12,140,949.80-18,211,424.70-11,581,077.80

Finding the Fourth Proportional to 12,140,949.80, 18,211,424.70 and 11,581,077.80

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Solution

The fourth proportional to 12,140,949.80, 18,211,424.70 and 11,581,077.80 is: 17,371,616.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,140,949.80 : 18,211,424.70 = 11,581,077.80 : x
  2. Step 2: Convert to fraction form
    12,140,949.80/18,211,424.70 = 11,581,077.80/x
  3. Step 3: Cross multiply
    12,140,949.80x = 18,211,424.70 × 11,581,077.80
  4. Step 4: Simplify right side
    12,140,949.80x = 210,907,926,299,541.66
  5. Step 5: Solve for x
    x = 210,907,926,299,541.66/12,140,949.80
  6. Step 6: Final answer
    x = 17,371,616.70

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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.