Home / 312,665,811.03-469,002,707.84-82,632,908.25

Finding the Fourth Proportional to 312,665,811.03, 469,002,707.84 and 82,632,908.25

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Solution

The fourth proportional to 312,665,811.03, 469,002,707.84 and 82,632,908.25 is: 123,950,417.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,665,811.03 : 469,002,707.84 = 82,632,908.25 : x
  2. Step 2: Convert to fraction form
    312,665,811.03/469,002,707.84 = 82,632,908.25/x
  3. Step 3: Cross multiply
    312,665,811.03x = 469,002,707.84 × 82,632,908.25
  4. Step 4: Simplify right side
    312,665,811.03x = 38,755,057,725,531,112
  5. Step 5: Solve for x
    x = 38,755,057,725,531,112/312,665,811.03
  6. Step 6: Final answer
    x = 123,950,417.21

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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.