Home / 21,370,007.46-31,978,388.36-18,501,241.80

Finding the Fourth Proportional to 21,370,007.46, 31,978,388.36 and 18,501,241.80

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Solution

The fourth proportional to 21,370,007.46, 31,978,388.36 and 18,501,241.80 is: 27,685,525.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,370,007.46 : 31,978,388.36 = 18,501,241.80 : x
  2. Step 2: Convert to fraction form
    21,370,007.46/31,978,388.36 = 18,501,241.80/x
  3. Step 3: Cross multiply
    21,370,007.46x = 31,978,388.36 × 18,501,241.80
  4. Step 4: Simplify right side
    21,370,007.46x = 591,639,895,422,665.50
  5. Step 5: Solve for x
    x = 591,639,895,422,665.50/21,370,007.46
  6. Step 6: Final answer
    x = 27,685,525.92

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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.