Home / 20,213,459.30-30,321,501.15-10,647,521.30

Finding the Fourth Proportional to 20,213,459.30, 30,321,501.15 and 10,647,521.30

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Solution

The fourth proportional to 20,213,459.30, 30,321,501.15 and 10,647,521.30 is: 15,971,973.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,213,459.30 : 30,321,501.15 = 10,647,521.30 : x
  2. Step 2: Convert to fraction form
    20,213,459.30/30,321,501.15 = 10,647,521.30/x
  3. Step 3: Cross multiply
    20,213,459.30x = 30,321,501.15 × 10,647,521.30
  4. Step 4: Simplify right side
    20,213,459.30x = 322,848,829,342,599.50
  5. Step 5: Solve for x
    x = 322,848,829,342,599.50/20,213,459.30
  6. Step 6: Final answer
    x = 15,971,973.16

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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.