Home / 278,040,368.80-417,060,553.20-73,589,111.20

Finding the Fourth Proportional to 278,040,368.80, 417,060,553.20 and 73,589,111.20

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Solution

The fourth proportional to 278,040,368.80, 417,060,553.20 and 73,589,111.20 is: 110,383,666.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,040,368.80 : 417,060,553.20 = 73,589,111.20 : x
  2. Step 2: Convert to fraction form
    278,040,368.80/417,060,553.20 = 73,589,111.20/x
  3. Step 3: Cross multiply
    278,040,368.80x = 417,060,553.20 × 73,589,111.20
  4. Step 4: Simplify right side
    278,040,368.80x = 30,691,115,426,568,316
  5. Step 5: Solve for x
    x = 30,691,115,426,568,316/278,040,368.80
  6. Step 6: Final answer
    x = 110,383,666.80

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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.