Home / 21,783,721.80-32,686,080.30-15,380,185.80

Finding the Fourth Proportional to 21,783,721.80, 32,686,080.30 and 15,380,185.80

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Solution

The fourth proportional to 21,783,721.80, 32,686,080.30 and 15,380,185.80 is: 23,077,690.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,783,721.80 : 32,686,080.30 = 15,380,185.80 : x
  2. Step 2: Convert to fraction form
    21,783,721.80/32,686,080.30 = 15,380,185.80/x
  3. Step 3: Cross multiply
    21,783,721.80x = 32,686,080.30 × 15,380,185.80
  4. Step 4: Simplify right side
    21,783,721.80x = 502,717,988,087,719.75
  5. Step 5: Solve for x
    x = 502,717,988,087,719.75/21,783,721.80
  6. Step 6: Final answer
    x = 23,077,690.43

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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.