Home / 424,375,818.40-636,563,727.60-404,287,348.60

Finding the Fourth Proportional to 424,375,818.40, 636,563,727.60 and 404,287,348.60

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Solution

The fourth proportional to 424,375,818.40, 636,563,727.60 and 404,287,348.60 is: 606,431,022.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,375,818.40 : 636,563,727.60 = 404,287,348.60 : x
  2. Step 2: Convert to fraction form
    424,375,818.40/636,563,727.60 = 404,287,348.60/x
  3. Step 3: Cross multiply
    424,375,818.40x = 636,563,727.60 × 404,287,348.60
  4. Step 4: Simplify right side
    424,375,818.40x = 257,354,661,646,336,672
  5. Step 5: Solve for x
    x = 257,354,661,646,336,672/424,375,818.40
  6. Step 6: Final answer
    x = 606,431,022.90

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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.