Home / 140,273,494.94-193,583,401.32-78,393,831.68

Finding the Fourth Proportional to 140,273,494.94, 193,583,401.32 and 78,393,831.68

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Solution

The fourth proportional to 140,273,494.94, 193,583,401.32 and 78,393,831.68 is: 108,186,828.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,273,494.94 : 193,583,401.32 = 78,393,831.68 : x
  2. Step 2: Convert to fraction form
    140,273,494.94/193,583,401.32 = 78,393,831.68/x
  3. Step 3: Cross multiply
    140,273,494.94x = 193,583,401.32 × 78,393,831.68
  4. Step 4: Simplify right side
    140,273,494.94x = 15,175,744,579,121,970
  5. Step 5: Solve for x
    x = 15,175,744,579,121,970/140,273,494.94
  6. Step 6: Final answer
    x = 108,186,828.78

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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.