Home / 20,213,459.80-30,321,501.90-10,647,521.80

Finding the Fourth Proportional to 20,213,459.80, 30,321,501.90 and 10,647,521.80

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Solution

The fourth proportional to 20,213,459.80, 30,321,501.90 and 10,647,521.80 is: 15,971,973.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,213,459.80 : 30,321,501.90 = 10,647,521.80 : x
  2. Step 2: Convert to fraction form
    20,213,459.80/30,321,501.90 = 10,647,521.80/x
  3. Step 3: Cross multiply
    20,213,459.80x = 30,321,501.90 × 10,647,521.80
  4. Step 4: Simplify right side
    20,213,459.80x = 322,848,852,488,991.44
  5. Step 5: Solve for x
    x = 322,848,852,488,991.44/20,213,459.80
  6. Step 6: Final answer
    x = 15,971,973.91

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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.