Home / 284,263,478.40-426,395,217.60-257,904,004.80

Finding the Fourth Proportional to 284,263,478.40, 426,395,217.60 and 257,904,004.80

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Solution

The fourth proportional to 284,263,478.40, 426,395,217.60 and 257,904,004.80 is: 386,856,007.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,263,478.40 : 426,395,217.60 = 257,904,004.80 : x
  2. Step 2: Convert to fraction form
    284,263,478.40/426,395,217.60 = 257,904,004.80/x
  3. Step 3: Cross multiply
    284,263,478.40x = 426,395,217.60 × 257,904,004.80
  4. Step 4: Simplify right side
    284,263,478.40x = 109,969,034,246,607,456
  5. Step 5: Solve for x
    x = 109,969,034,246,607,456/284,263,478.40
  6. Step 6: Final answer
    x = 386,856,007.20

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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.