Home / 30,813,980.32-42,521,471.76-17,062,172.32

Finding the Fourth Proportional to 30,813,980.32, 42,521,471.76 and 17,062,172.32

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Solution

The fourth proportional to 30,813,980.32, 42,521,471.76 and 17,062,172.32 is: 23,544,789.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,813,980.32 : 42,521,471.76 = 17,062,172.32 : x
  2. Step 2: Convert to fraction form
    30,813,980.32/42,521,471.76 = 17,062,172.32/x
  3. Step 3: Cross multiply
    30,813,980.32x = 42,521,471.76 × 17,062,172.32
  4. Step 4: Simplify right side
    30,813,980.32x = 725,508,678,469,133.62
  5. Step 5: Solve for x
    x = 725,508,678,469,133.62/30,813,980.32
  6. Step 6: Final answer
    x = 23,544,789.44

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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.