Home / 338,708,907.65-508,002,755.15-215,521,297.56

Finding the Fourth Proportional to 338,708,907.65, 508,002,755.15 and 215,521,297.56

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Solution

The fourth proportional to 338,708,907.65, 508,002,755.15 and 215,521,297.56 is: 323,243,382.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,708,907.65 : 508,002,755.15 = 215,521,297.56 : x
  2. Step 2: Convert to fraction form
    338,708,907.65/508,002,755.15 = 215,521,297.56/x
  3. Step 3: Cross multiply
    338,708,907.65x = 508,002,755.15 × 215,521,297.56
  4. Step 4: Simplify right side
    338,708,907.65x = 109,485,412,954,521,776
  5. Step 5: Solve for x
    x = 109,485,412,954,521,776/338,708,907.65
  6. Step 6: Final answer
    x = 323,243,382.39

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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.