Home / 312,665,809.80-469,002,705.96-82,632,907

Finding the Fourth Proportional to 312,665,809.80, 469,002,705.96 and 82,632,907

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Solution

The fourth proportional to 312,665,809.80, 469,002,705.96 and 82,632,907 is: 123,950,415.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,665,809.80 : 469,002,705.96 = 82,632,907 : x
  2. Step 2: Convert to fraction form
    312,665,809.80/469,002,705.96 = 82,632,907/x
  3. Step 3: Cross multiply
    312,665,809.80x = 469,002,705.96 × 82,632,907
  4. Step 4: Simplify right side
    312,665,809.80x = 38,755,056,984,341,024
  5. Step 5: Solve for x
    x = 38,755,056,984,341,024/312,665,809.80
  6. Step 6: Final answer
    x = 123,950,415.33

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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.