Home / 19,555,643.60-29,321,801.40-11,988,040.40

Finding the Fourth Proportional to 19,555,643.60, 29,321,801.40 and 11,988,040.40

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Solution

The fourth proportional to 19,555,643.60, 29,321,801.40 and 11,988,040.40 is: 17,974,910.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,555,643.60 : 29,321,801.40 = 11,988,040.40 : x
  2. Step 2: Convert to fraction form
    19,555,643.60/29,321,801.40 = 11,988,040.40/x
  3. Step 3: Cross multiply
    19,555,643.60x = 29,321,801.40 × 11,988,040.40
  4. Step 4: Simplify right side
    19,555,643.60x = 351,510,939,783,976.56
  5. Step 5: Solve for x
    x = 351,510,939,783,976.56/19,555,643.60
  6. Step 6: Final answer
    x = 17,974,910.31

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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.