Home / 18,412,743.36-25,420,473.40-16,369,900.72

Finding the Fourth Proportional to 18,412,743.36, 25,420,473.40 and 16,369,900.72

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Solution

The fourth proportional to 18,412,743.36, 25,420,473.40 and 16,369,900.72 is: 22,600,142.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,412,743.36 : 25,420,473.40 = 16,369,900.72 : x
  2. Step 2: Convert to fraction form
    18,412,743.36/25,420,473.40 = 16,369,900.72/x
  3. Step 3: Cross multiply
    18,412,743.36x = 25,420,473.40 × 16,369,900.72
  4. Step 4: Simplify right side
    18,412,743.36x = 416,130,625,813,400.81
  5. Step 5: Solve for x
    x = 416,130,625,813,400.81/18,412,743.36
  6. Step 6: Final answer
    x = 22,600,142.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.