Home / 7,212,145.65-9,952,724.46-3,948,901.08

Finding the Fourth Proportional to 7,212,145.65, 9,952,724.46 and 3,948,901.08

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Solution

The fourth proportional to 7,212,145.65, 9,952,724.46 and 3,948,901.08 is: 5,449,463.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,212,145.65 : 9,952,724.46 = 3,948,901.08 : x
  2. Step 2: Convert to fraction form
    7,212,145.65/9,952,724.46 = 3,948,901.08/x
  3. Step 3: Cross multiply
    7,212,145.65x = 9,952,724.46 × 3,948,901.08
  4. Step 4: Simplify right side
    7,212,145.65x = 39,302,324,369,036.42
  5. Step 5: Solve for x
    x = 39,302,324,369,036.42/7,212,145.65
  6. Step 6: Final answer
    x = 5,449,463.49

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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.