Home / 312,665,810.53-469,002,707.09-82,632,907.75

Finding the Fourth Proportional to 312,665,810.53, 469,002,707.09 and 82,632,907.75

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Solution

The fourth proportional to 312,665,810.53, 469,002,707.09 and 82,632,907.75 is: 123,950,416.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,665,810.53 : 469,002,707.09 = 82,632,907.75 : x
  2. Step 2: Convert to fraction form
    312,665,810.53/469,002,707.09 = 82,632,907.75/x
  3. Step 3: Cross multiply
    312,665,810.53x = 469,002,707.09 × 82,632,907.75
  4. Step 4: Simplify right side
    312,665,810.53x = 38,755,057,429,055,072
  5. Step 5: Solve for x
    x = 38,755,057,429,055,072/312,665,810.53
  6. Step 6: Final answer
    x = 123,950,416.46

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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.