Home / 12,356,494.80-18,534,742.20-11,516,686.80

Finding the Fourth Proportional to 12,356,494.80, 18,534,742.20 and 11,516,686.80

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Solution

The fourth proportional to 12,356,494.80, 18,534,742.20 and 11,516,686.80 is: 17,275,030.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,356,494.80 : 18,534,742.20 = 11,516,686.80 : x
  2. Step 2: Convert to fraction form
    12,356,494.80/18,534,742.20 = 11,516,686.80/x
  3. Step 3: Cross multiply
    12,356,494.80x = 18,534,742.20 × 11,516,686.80
  4. Step 4: Simplify right side
    12,356,494.80x = 213,458,820,836,142.97
  5. Step 5: Solve for x
    x = 213,458,820,836,142.97/12,356,494.80
  6. Step 6: Final answer
    x = 17,275,030.20

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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.