Home / 7,202,213.92-9,938,915.53-3,939,018.55

Finding the Fourth Proportional to 7,202,213.92, 9,938,915.53 and 3,939,018.55

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Solution

The fourth proportional to 7,202,213.92, 9,938,915.53 and 3,939,018.55 is: 5,435,769.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,202,213.92 : 9,938,915.53 = 3,939,018.55 : x
  2. Step 2: Convert to fraction form
    7,202,213.92/9,938,915.53 = 3,939,018.55/x
  3. Step 3: Cross multiply
    7,202,213.92x = 9,938,915.53 × 3,939,018.55
  4. Step 4: Simplify right side
    7,202,213.92x = 39,149,572,639,553.08
  5. Step 5: Solve for x
    x = 39,149,572,639,553.08/7,202,213.92
  6. Step 6: Final answer
    x = 5,435,769.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.