Home / 378,684,779.94-522,545,186.00-219,883,861.38

Finding the Fourth Proportional to 378,684,779.94, 522,545,186.00 and 219,883,861.38

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Solution

The fourth proportional to 378,684,779.94, 522,545,186.00 and 219,883,861.38 is: 303,416,612.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,684,779.94 : 522,545,186.00 = 219,883,861.38 : x
  2. Step 2: Convert to fraction form
    378,684,779.94/522,545,186.00 = 219,883,861.38/x
  3. Step 3: Cross multiply
    378,684,779.94x = 522,545,186.00 × 219,883,861.38
  4. Step 4: Simplify right side
    378,684,779.94x = 114,899,253,240,151,360
  5. Step 5: Solve for x
    x = 114,899,253,240,151,360/378,684,779.94
  6. Step 6: Final answer
    x = 303,416,612.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.