Home / 664,255,219.44-916,672,167.82-358,728,221.28

Finding the Fourth Proportional to 664,255,219.44, 916,672,167.82 and 358,728,221.28

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Solution

The fourth proportional to 664,255,219.44, 916,672,167.82 and 358,728,221.28 is: 495,044,926.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,255,219.44 : 916,672,167.82 = 358,728,221.28 : x
  2. Step 2: Convert to fraction form
    664,255,219.44/916,672,167.82 = 358,728,221.28/x
  3. Step 3: Cross multiply
    664,255,219.44x = 916,672,167.82 × 358,728,221.28
  4. Step 4: Simplify right side
    664,255,219.44x = 328,836,176,258,950,272
  5. Step 5: Solve for x
    x = 328,836,176,258,950,272/664,255,219.44
  6. Step 6: Final answer
    x = 495,044,926.46

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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.