Home / 512,079,830.82-706,662,645.89-286,022,113.49

Finding the Fourth Proportional to 512,079,830.82, 706,662,645.89 and 286,022,113.49

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Solution

The fourth proportional to 512,079,830.82, 706,662,645.89 and 286,022,113.49 is: 394,706,315.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,079,830.82 : 706,662,645.89 = 286,022,113.49 : x
  2. Step 2: Convert to fraction form
    512,079,830.82/706,662,645.89 = 286,022,113.49/x
  3. Step 3: Cross multiply
    512,079,830.82x = 706,662,645.89 × 286,022,113.49
  4. Step 4: Simplify right side
    512,079,830.82x = 202,121,143,498,580,896
  5. Step 5: Solve for x
    x = 202,121,143,498,580,896/512,079,830.82
  6. Step 6: Final answer
    x = 394,706,315.96

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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.