Home / 492,281,863.60-738,534,769.80-287,704,634.80

Finding the Fourth Proportional to 492,281,863.60, 738,534,769.80 and 287,704,634.80

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Solution

The fourth proportional to 492,281,863.60, 738,534,769.80 and 287,704,634.80 is: 431,622,393.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,281,863.60 : 738,534,769.80 = 287,704,634.80 : x
  2. Step 2: Convert to fraction form
    492,281,863.60/738,534,769.80 = 287,704,634.80/x
  3. Step 3: Cross multiply
    492,281,863.60x = 738,534,769.80 × 287,704,634.80
  4. Step 4: Simplify right side
    492,281,863.60x = 212,479,876,232,411,072
  5. Step 5: Solve for x
    x = 212,479,876,232,411,072/492,281,863.60
  6. Step 6: Final answer
    x = 431,622,393.48

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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.