Home / 287,782,766.80-431,674,150.20-237,394,286.80

Finding the Fourth Proportional to 287,782,766.80, 431,674,150.20 and 237,394,286.80

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Solution

The fourth proportional to 287,782,766.80, 431,674,150.20 and 237,394,286.80 is: 356,091,430.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,782,766.80 : 431,674,150.20 = 237,394,286.80 : x
  2. Step 2: Convert to fraction form
    287,782,766.80/431,674,150.20 = 237,394,286.80/x
  3. Step 3: Cross multiply
    287,782,766.80x = 431,674,150.20 × 237,394,286.80
  4. Step 4: Simplify right side
    287,782,766.80x = 102,476,977,016,725,072
  5. Step 5: Solve for x
    x = 102,476,977,016,725,072/287,782,766.80
  6. Step 6: Final answer
    x = 356,091,430.20

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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.