Home / 388,220,021.91-582,619,250.07-284,856,326.30

Finding the Fourth Proportional to 388,220,021.91, 582,619,250.07 and 284,856,326.30

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Solution

The fourth proportional to 388,220,021.91, 582,619,250.07 and 284,856,326.30 is: 427,496,702.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,220,021.91 : 582,619,250.07 = 284,856,326.30 : x
  2. Step 2: Convert to fraction form
    388,220,021.91/582,619,250.07 = 284,856,326.30/x
  3. Step 3: Cross multiply
    388,220,021.91x = 582,619,250.07 × 284,856,326.30
  4. Step 4: Simplify right side
    388,220,021.91x = 165,962,779,206,601,248
  5. Step 5: Solve for x
    x = 165,962,779,206,601,248/388,220,021.91
  6. Step 6: Final answer
    x = 427,496,702.49

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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.