Home / 621,543,371.10-857,729,717.91-343,084,822.62

Finding the Fourth Proportional to 621,543,371.10, 857,729,717.91 and 343,084,822.62

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Solution

The fourth proportional to 621,543,371.10, 857,729,717.91 and 343,084,822.62 is: 473,456,981.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,543,371.10 : 857,729,717.91 = 343,084,822.62 : x
  2. Step 2: Convert to fraction form
    621,543,371.10/857,729,717.91 = 343,084,822.62/x
  3. Step 3: Cross multiply
    621,543,371.10x = 857,729,717.91 × 343,084,822.62
  4. Step 4: Simplify right side
    621,543,371.10x = 294,274,048,125,054,976
  5. Step 5: Solve for x
    x = 294,274,048,125,054,976/621,543,371.10
  6. Step 6: Final answer
    x = 473,456,981.13

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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.