Home / 21,761,839.80-32,642,759.70-13,102,486.20

Finding the Fourth Proportional to 21,761,839.80, 32,642,759.70 and 13,102,486.20

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Solution

The fourth proportional to 21,761,839.80, 32,642,759.70 and 13,102,486.20 is: 19,653,729.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,761,839.80 : 32,642,759.70 = 13,102,486.20 : x
  2. Step 2: Convert to fraction form
    21,761,839.80/32,642,759.70 = 13,102,486.20/x
  3. Step 3: Cross multiply
    21,761,839.80x = 32,642,759.70 × 13,102,486.20
  4. Step 4: Simplify right side
    21,761,839.80x = 427,701,308,499,166.12
  5. Step 5: Solve for x
    x = 427,701,308,499,166.12/21,761,839.80
  6. Step 6: Final answer
    x = 19,653,729.30

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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.