Home / 664,255,211.45-916,672,156.79-358,728,213.26

Finding the Fourth Proportional to 664,255,211.45, 916,672,156.79 and 358,728,213.26

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Solution

The fourth proportional to 664,255,211.45, 916,672,156.79 and 358,728,213.26 is: 495,044,915.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,255,211.45 : 916,672,156.79 = 358,728,213.26 : x
  2. Step 2: Convert to fraction form
    664,255,211.45/916,672,156.79 = 358,728,213.26/x
  3. Step 3: Cross multiply
    664,255,211.45x = 916,672,156.79 × 358,728,213.26
  4. Step 4: Simplify right side
    664,255,211.45x = 328,836,164,944,090,240
  5. Step 5: Solve for x
    x = 328,836,164,944,090,240/664,255,211.45
  6. Step 6: Final answer
    x = 495,044,915.39

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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.