Home / 144,642,448.32-199,608,043.68-78,564,237

Finding the Fourth Proportional to 144,642,448.32, 199,608,043.68 and 78,564,237

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Solution

The fourth proportional to 144,642,448.32, 199,608,043.68 and 78,564,237 is: 108,419,442.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,642,448.32 : 199,608,043.68 = 78,564,237 : x
  2. Step 2: Convert to fraction form
    144,642,448.32/199,608,043.68 = 78,564,237/x
  3. Step 3: Cross multiply
    144,642,448.32x = 199,608,043.68 × 78,564,237
  4. Step 4: Simplify right side
    144,642,448.32x = 15,682,053,650,781,872
  5. Step 5: Solve for x
    x = 15,682,053,650,781,872/144,642,448.32
  6. Step 6: Final answer
    x = 108,419,442.79

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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.