Home / 512,489,405.70-707,231,858.27-277,534,689.51

Finding the Fourth Proportional to 512,489,405.70, 707,231,858.27 and 277,534,689.51

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Solution

The fourth proportional to 512,489,405.70, 707,231,858.27 and 277,534,689.51 is: 382,995,964.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,489,405.70 : 707,231,858.27 = 277,534,689.51 : x
  2. Step 2: Convert to fraction form
    512,489,405.70/707,231,858.27 = 277,534,689.51/x
  3. Step 3: Cross multiply
    512,489,405.70x = 707,231,858.27 × 277,534,689.51
  4. Step 4: Simplify right side
    512,489,405.70x = 196,281,374,195,157,088
  5. Step 5: Solve for x
    x = 196,281,374,195,157,088/512,489,405.70
  6. Step 6: Final answer
    x = 382,995,964.43

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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.