Home / 431,217,230.40-646,825,845.60-158,531,572.80

Finding the Fourth Proportional to 431,217,230.40, 646,825,845.60 and 158,531,572.80

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Solution

The fourth proportional to 431,217,230.40, 646,825,845.60 and 158,531,572.80 is: 237,797,359.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,217,230.40 : 646,825,845.60 = 158,531,572.80 : x
  2. Step 2: Convert to fraction form
    431,217,230.40/646,825,845.60 = 158,531,572.80/x
  3. Step 3: Cross multiply
    431,217,230.40x = 646,825,845.60 × 158,531,572.80
  4. Step 4: Simplify right side
    431,217,230.40x = 102,542,318,630,657,968
  5. Step 5: Solve for x
    x = 102,542,318,630,657,968/431,217,230.40
  6. Step 6: Final answer
    x = 237,797,359.20

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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.