Home / 855,785,183.86-1,181,012,748.15-479,457,639.82

Finding the Fourth Proportional to 855,785,183.86, 1,181,012,748.15 and 479,457,639.82

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Solution

The fourth proportional to 855,785,183.86, 1,181,012,748.15 and 479,457,639.82 is: 661,667,899.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,785,183.86 : 1,181,012,748.15 = 479,457,639.82 : x
  2. Step 2: Convert to fraction form
    855,785,183.86/1,181,012,748.15 = 479,457,639.82/x
  3. Step 3: Cross multiply
    855,785,183.86x = 1,181,012,748.15 × 479,457,639.82
  4. Step 4: Simplify right side
    855,785,183.86x = 566,245,584,825,331,136
  5. Step 5: Solve for x
    x = 566,245,584,825,331,136/855,785,183.86
  6. Step 6: Final answer
    x = 661,667,899.26

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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.