Home / 8,217,165.90-12,299,915.25-5,643,309.90

Finding the Fourth Proportional to 8,217,165.90, 12,299,915.25 and 5,643,309.90

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Solution

The fourth proportional to 8,217,165.90, 12,299,915.25 and 5,643,309.90 is: 8,447,223.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,217,165.90 : 12,299,915.25 = 5,643,309.90 : x
  2. Step 2: Convert to fraction form
    8,217,165.90/12,299,915.25 = 5,643,309.90/x
  3. Step 3: Cross multiply
    8,217,165.90x = 12,299,915.25 × 5,643,309.90
  4. Step 4: Simplify right side
    8,217,165.90x = 69,412,233,499,485.98
  5. Step 5: Solve for x
    x = 69,412,233,499,485.98/8,217,165.90
  6. Step 6: Final answer
    x = 8,447,223.09

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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.