Home / 639,945,657.38-959,918,488.44-179,883,826.70

Finding the Fourth Proportional to 639,945,657.38, 959,918,488.44 and 179,883,826.70

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Solution

The fourth proportional to 639,945,657.38, 959,918,488.44 and 179,883,826.70 is: 269,825,740.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,945,657.38 : 959,918,488.44 = 179,883,826.70 : x
  2. Step 2: Convert to fraction form
    639,945,657.38/959,918,488.44 = 179,883,826.70/x
  3. Step 3: Cross multiply
    639,945,657.38x = 959,918,488.44 × 179,883,826.70
  4. Step 4: Simplify right side
    639,945,657.38x = 172,673,811,020,666,912
  5. Step 5: Solve for x
    x = 172,673,811,020,666,912/639,945,657.38
  6. Step 6: Final answer
    x = 269,825,740.72

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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.