Home / 378,088,579.80-567,132,869.70-90,874,243.80

Finding the Fourth Proportional to 378,088,579.80, 567,132,869.70 and 90,874,243.80

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Solution

The fourth proportional to 378,088,579.80, 567,132,869.70 and 90,874,243.80 is: 136,311,365.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,088,579.80 : 567,132,869.70 = 90,874,243.80 : x
  2. Step 2: Convert to fraction form
    378,088,579.80/567,132,869.70 = 90,874,243.80/x
  3. Step 3: Cross multiply
    378,088,579.80x = 567,132,869.70 × 90,874,243.80
  4. Step 4: Simplify right side
    378,088,579.80x = 51,537,770,668,111,432
  5. Step 5: Solve for x
    x = 51,537,770,668,111,432/378,088,579.80
  6. Step 6: Final answer
    x = 136,311,365.70

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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.