Home / 217,276,814.75-300,631,571.25-189,457,535.12

Finding the Fourth Proportional to 217,276,814.75, 300,631,571.25 and 189,457,535.12

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Solution

The fourth proportional to 217,276,814.75, 300,631,571.25 and 189,457,535.12 is: 262,139,872.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,276,814.75 : 300,631,571.25 = 189,457,535.12 : x
  2. Step 2: Convert to fraction form
    217,276,814.75/300,631,571.25 = 189,457,535.12/x
  3. Step 3: Cross multiply
    217,276,814.75x = 300,631,571.25 × 189,457,535.12
  4. Step 4: Simplify right side
    217,276,814.75x = 56,956,916,468,277,656
  5. Step 5: Solve for x
    x = 56,956,916,468,277,656/217,276,814.75
  6. Step 6: Final answer
    x = 262,139,872.28

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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.