Home / 20,983,532-31,440,501.09-12,761,304.23

Finding the Fourth Proportional to 20,983,532, 31,440,501.09 and 12,761,304.23

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Solution

The fourth proportional to 20,983,532, 31,440,501.09 and 12,761,304.23 is: 19,120,794.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,983,532 : 31,440,501.09 = 12,761,304.23 : x
  2. Step 2: Convert to fraction form
    20,983,532/31,440,501.09 = 12,761,304.23/x
  3. Step 3: Cross multiply
    20,983,532x = 31,440,501.09 × 12,761,304.23
  4. Step 4: Simplify right side
    20,983,532x = 401,221,799,553,136.62
  5. Step 5: Solve for x
    x = 401,221,799,553,136.62/20,983,532
  6. Step 6: Final answer
    x = 19,120,794.32

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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.