Home / 7,169,721.53-9,894,090.65-3,906,563.22

Finding the Fourth Proportional to 7,169,721.53, 9,894,090.65 and 3,906,563.22

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Solution

The fourth proportional to 7,169,721.53, 9,894,090.65 and 3,906,563.22 is: 5,390,989.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,169,721.53 : 9,894,090.65 = 3,906,563.22 : x
  2. Step 2: Convert to fraction form
    7,169,721.53/9,894,090.65 = 3,906,563.22/x
  3. Step 3: Cross multiply
    7,169,721.53x = 9,894,090.65 × 3,906,563.22
  4. Step 4: Simplify right side
    7,169,721.53x = 38,651,890,609,103.08
  5. Step 5: Solve for x
    x = 38,651,890,609,103.08/7,169,721.53
  6. Step 6: Final answer
    x = 5,390,989.10

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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.