Home / 205,951,801.20-308,927,701.80-108,869,996.40

Finding the Fourth Proportional to 205,951,801.20, 308,927,701.80 and 108,869,996.40

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Solution

The fourth proportional to 205,951,801.20, 308,927,701.80 and 108,869,996.40 is: 163,304,994.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,951,801.20 : 308,927,701.80 = 108,869,996.40 : x
  2. Step 2: Convert to fraction form
    205,951,801.20/308,927,701.80 = 108,869,996.40/x
  3. Step 3: Cross multiply
    205,951,801.20x = 308,927,701.80 × 108,869,996.40
  4. Step 4: Simplify right side
    205,951,801.20x = 33,632,957,782,826,276
  5. Step 5: Solve for x
    x = 33,632,957,782,826,276/205,951,801.20
  6. Step 6: Final answer
    x = 163,304,994.60

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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.