Home / 118,852,215.30-178,278,322.95-81,863,921.70

Finding the Fourth Proportional to 118,852,215.30, 178,278,322.95 and 81,863,921.70

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Solution

The fourth proportional to 118,852,215.30, 178,278,322.95 and 81,863,921.70 is: 122,795,882.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,852,215.30 : 178,278,322.95 = 81,863,921.70 : x
  2. Step 2: Convert to fraction form
    118,852,215.30/178,278,322.95 = 81,863,921.70/x
  3. Step 3: Cross multiply
    118,852,215.30x = 178,278,322.95 × 81,863,921.70
  4. Step 4: Simplify right side
    118,852,215.30x = 14,594,562,670,786,112
  5. Step 5: Solve for x
    x = 14,594,562,670,786,112/118,852,215.30
  6. Step 6: Final answer
    x = 122,795,882.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.