Home / 21,306,283.20-31,972,546.80-9,181,555.20

Finding the Fourth Proportional to 21,306,283.20, 31,972,546.80 and 9,181,555.20

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Solution

The fourth proportional to 21,306,283.20, 31,972,546.80 and 9,181,555.20 is: 13,777,987.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,306,283.20 : 31,972,546.80 = 9,181,555.20 : x
  2. Step 2: Convert to fraction form
    21,306,283.20/31,972,546.80 = 9,181,555.20/x
  3. Step 3: Cross multiply
    21,306,283.20x = 31,972,546.80 × 9,181,555.20
  4. Step 4: Simplify right side
    21,306,283.20x = 293,557,703,328,783.31
  5. Step 5: Solve for x
    x = 293,557,703,328,783.31/21,306,283.20
  6. Step 6: Final answer
    x = 13,777,987.49

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1.5x scale

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.