Home / 621,543,372.10-857,729,719.29-343,084,823.62

Finding the Fourth Proportional to 621,543,372.10, 857,729,719.29 and 343,084,823.62

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Solution

The fourth proportional to 621,543,372.10, 857,729,719.29 and 343,084,823.62 is: 473,456,982.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,543,372.10 : 857,729,719.29 = 343,084,823.62 : x
  2. Step 2: Convert to fraction form
    621,543,372.10/857,729,719.29 = 343,084,823.62/x
  3. Step 3: Cross multiply
    621,543,372.10x = 857,729,719.29 × 343,084,823.62
  4. Step 4: Simplify right side
    621,543,372.10x = 294,274,049,456,241,728
  5. Step 5: Solve for x
    x = 294,274,049,456,241,728/621,543,372.10
  6. Step 6: Final answer
    x = 473,456,982.51

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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.