Home / 485,514,014.40-728,271,021.60-321,936,474.60

Finding the Fourth Proportional to 485,514,014.40, 728,271,021.60 and 321,936,474.60

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Solution

The fourth proportional to 485,514,014.40, 728,271,021.60 and 321,936,474.60 is: 482,904,711.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,514,014.40 : 728,271,021.60 = 321,936,474.60 : x
  2. Step 2: Convert to fraction form
    485,514,014.40/728,271,021.60 = 321,936,474.60/x
  3. Step 3: Cross multiply
    485,514,014.40x = 728,271,021.60 × 321,936,474.60
  4. Step 4: Simplify right side
    485,514,014.40x = 234,457,005,247,244,480
  5. Step 5: Solve for x
    x = 234,457,005,247,244,480/485,514,014.40
  6. Step 6: Final answer
    x = 482,904,711.90

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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.