Home / 290,303,831.91-400,619,111.42-159,923,639.91

Finding the Fourth Proportional to 290,303,831.91, 400,619,111.42 and 159,923,639.91

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Solution

The fourth proportional to 290,303,831.91, 400,619,111.42 and 159,923,639.91 is: 220,694,525.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,303,831.91 : 400,619,111.42 = 159,923,639.91 : x
  2. Step 2: Convert to fraction form
    290,303,831.91/400,619,111.42 = 159,923,639.91/x
  3. Step 3: Cross multiply
    290,303,831.91x = 400,619,111.42 × 159,923,639.91
  4. Step 4: Simplify right side
    290,303,831.91x = 64,068,466,515,796,248
  5. Step 5: Solve for x
    x = 64,068,466,515,796,248/290,303,831.91
  6. Step 6: Final answer
    x = 220,694,525.78

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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.