Home / 420,677,581.23-631,029,227.07-144,324,918.92

Finding the Fourth Proportional to 420,677,581.23, 631,029,227.07 and 144,324,918.92

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Solution

The fourth proportional to 420,677,581.23, 631,029,227.07 and 144,324,918.92 is: 216,491,788.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,677,581.23 : 631,029,227.07 = 144,324,918.92 : x
  2. Step 2: Convert to fraction form
    420,677,581.23/631,029,227.07 = 144,324,918.92/x
  3. Step 3: Cross multiply
    420,677,581.23x = 631,029,227.07 × 144,324,918.92
  4. Step 4: Simplify right side
    420,677,581.23x = 91,073,242,029,872,880
  5. Step 5: Solve for x
    x = 91,073,242,029,872,880/420,677,581.23
  6. Step 6: Final answer
    x = 216,491,788.71

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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.