Home / 320,543,991.30-480,656,773.17-102,165,917.70

Finding the Fourth Proportional to 320,543,991.30, 480,656,773.17 and 102,165,917.70

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Solution

The fourth proportional to 320,543,991.30, 480,656,773.17 and 102,165,917.70 is: 153,198,130.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,543,991.30 : 480,656,773.17 = 102,165,917.70 : x
  2. Step 2: Convert to fraction form
    320,543,991.30/480,656,773.17 = 102,165,917.70/x
  3. Step 3: Cross multiply
    320,543,991.30x = 480,656,773.17 × 102,165,917.70
  4. Step 4: Simplify right side
    320,543,991.30x = 49,106,740,329,633,792
  5. Step 5: Solve for x
    x = 49,106,740,329,633,792/320,543,991.30
  6. Step 6: Final answer
    x = 153,198,130.87

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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.