Home / 392,509,831.86-541,667,150.28-216,304,149.47

Finding the Fourth Proportional to 392,509,831.86, 541,667,150.28 and 216,304,149.47

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Solution

The fourth proportional to 392,509,831.86, 541,667,150.28 and 216,304,149.47 is: 298,501,700.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,509,831.86 : 541,667,150.28 = 216,304,149.47 : x
  2. Step 2: Convert to fraction form
    392,509,831.86/541,667,150.28 = 216,304,149.47/x
  3. Step 3: Cross multiply
    392,509,831.86x = 541,667,150.28 × 216,304,149.47
  4. Step 4: Simplify right side
    392,509,831.86x = 117,164,852,237,154,064
  5. Step 5: Solve for x
    x = 117,164,852,237,154,064/392,509,831.86
  6. Step 6: Final answer
    x = 298,501,700.41

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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.