Home / 7,212,143.65-9,952,721.70-3,948,899.08

Finding the Fourth Proportional to 7,212,143.65, 9,952,721.70 and 3,948,899.08

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Solution

The fourth proportional to 7,212,143.65, 9,952,721.70 and 3,948,899.08 is: 5,449,460.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,212,143.65 : 9,952,721.70 = 3,948,899.08 : x
  2. Step 2: Convert to fraction form
    7,212,143.65/9,952,721.70 = 3,948,899.08/x
  3. Step 3: Cross multiply
    7,212,143.65x = 9,952,721.70 × 3,948,899.08
  4. Step 4: Simplify right side
    7,212,143.65x = 39,302,293,564,626.03
  5. Step 5: Solve for x
    x = 39,302,293,564,626.03/7,212,143.65
  6. Step 6: Final answer
    x = 5,449,460.73

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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.