Home / 252,288,943.80-378,433,415.70-108,681,775.80

Finding the Fourth Proportional to 252,288,943.80, 378,433,415.70 and 108,681,775.80

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Solution

The fourth proportional to 252,288,943.80, 378,433,415.70 and 108,681,775.80 is: 163,022,663.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,288,943.80 : 378,433,415.70 = 108,681,775.80 : x
  2. Step 2: Convert to fraction form
    252,288,943.80/378,433,415.70 = 108,681,775.80/x
  3. Step 3: Cross multiply
    252,288,943.80x = 378,433,415.70 × 108,681,775.80
  4. Step 4: Simplify right side
    252,288,943.80x = 41,128,815,640,335,600
  5. Step 5: Solve for x
    x = 41,128,815,640,335,600/252,288,943.80
  6. Step 6: Final answer
    x = 163,022,663.70

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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.