Home / 198,151,678.56-297,109,770.69-75,338,985.90

Finding the Fourth Proportional to 198,151,678.56, 297,109,770.69 and 75,338,985.90

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Solution

The fourth proportional to 198,151,678.56, 297,109,770.69 and 75,338,985.90 is: 112,963,710.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,151,678.56 : 297,109,770.69 = 75,338,985.90 : x
  2. Step 2: Convert to fraction form
    198,151,678.56/297,109,770.69 = 75,338,985.90/x
  3. Step 3: Cross multiply
    198,151,678.56x = 297,109,770.69 × 75,338,985.90
  4. Step 4: Simplify right side
    198,151,678.56x = 22,383,948,824,766,144
  5. Step 5: Solve for x
    x = 22,383,948,824,766,144/198,151,678.56
  6. Step 6: Final answer
    x = 112,963,710.36

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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.