Home / 400,608,831.35-552,843,433.23-221,995,703.21

Finding the Fourth Proportional to 400,608,831.35, 552,843,433.23 and 221,995,703.21

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Solution

The fourth proportional to 400,608,831.35, 552,843,433.23 and 221,995,703.21 is: 306,355,869.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,608,831.35 : 552,843,433.23 = 221,995,703.21 : x
  2. Step 2: Convert to fraction form
    400,608,831.35/552,843,433.23 = 221,995,703.21/x
  3. Step 3: Cross multiply
    400,608,831.35x = 552,843,433.23 × 221,995,703.21
  4. Step 4: Simplify right side
    400,608,831.35x = 122,728,866,722,160,320
  5. Step 5: Solve for x
    x = 122,728,866,722,160,320/400,608,831.35
  6. Step 6: Final answer
    x = 306,355,869.16

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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.