Home / 7,202,934.35-9,939,977.07-3,939,812.80

Finding the Fourth Proportional to 7,202,934.35, 9,939,977.07 and 3,939,812.80

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Solution

The fourth proportional to 7,202,934.35, 9,939,977.07 and 3,939,812.80 is: 5,436,902.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,202,934.35 : 9,939,977.07 = 3,939,812.80 : x
  2. Step 2: Convert to fraction form
    7,202,934.35/9,939,977.07 = 3,939,812.80/x
  3. Step 3: Cross multiply
    7,202,934.35x = 9,939,977.07 × 3,939,812.80
  4. Step 4: Simplify right side
    7,202,934.35x = 39,161,648,852,468.26
  5. Step 5: Solve for x
    x = 39,161,648,852,468.26/7,202,934.35
  6. Step 6: Final answer
    x = 5,436,902.10

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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.