Home / 313,278,288.58-432,331,238.82-172,158,282.64

Finding the Fourth Proportional to 313,278,288.58, 432,331,238.82 and 172,158,282.64

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Solution

The fourth proportional to 313,278,288.58, 432,331,238.82 and 172,158,282.64 is: 237,582,387.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,278,288.58 : 432,331,238.82 = 172,158,282.64 : x
  2. Step 2: Convert to fraction form
    313,278,288.58/432,331,238.82 = 172,158,282.64/x
  3. Step 3: Cross multiply
    313,278,288.58x = 432,331,238.82 × 172,158,282.64
  4. Step 4: Simplify right side
    313,278,288.58x = 74,429,403,606,874,896
  5. Step 5: Solve for x
    x = 74,429,403,606,874,896/313,278,288.58
  6. Step 6: Final answer
    x = 237,582,387.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.