Home / 358,728,136.80-538,092,205.20-328,117,135.20

Finding the Fourth Proportional to 358,728,136.80, 538,092,205.20 and 328,117,135.20

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Solution

The fourth proportional to 358,728,136.80, 538,092,205.20 and 328,117,135.20 is: 492,175,702.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,728,136.80 : 538,092,205.20 = 328,117,135.20 : x
  2. Step 2: Convert to fraction form
    358,728,136.80/538,092,205.20 = 328,117,135.20/x
  3. Step 3: Cross multiply
    358,728,136.80x = 538,092,205.20 × 328,117,135.20
  4. Step 4: Simplify right side
    358,728,136.80x = 176,557,272,843,674,560
  5. Step 5: Solve for x
    x = 176,557,272,843,674,560/358,728,136.80
  6. Step 6: Final answer
    x = 492,175,702.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.