Home / 420,677,597.72-631,029,251.84-144,324,935.43

Finding the Fourth Proportional to 420,677,597.72, 631,029,251.84 and 144,324,935.43

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Solution

The fourth proportional to 420,677,597.72, 631,029,251.84 and 144,324,935.43 is: 216,491,813.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,677,597.72 : 631,029,251.84 = 144,324,935.43 : x
  2. Step 2: Convert to fraction form
    420,677,597.72/631,029,251.84 = 144,324,935.43/x
  3. Step 3: Cross multiply
    420,677,597.72x = 631,029,251.84 × 144,324,935.43
  4. Step 4: Simplify right side
    420,677,597.72x = 91,073,256,025,527,600
  5. Step 5: Solve for x
    x = 91,073,256,025,527,600/420,677,597.72
  6. Step 6: Final answer
    x = 216,491,813.49

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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.