Home / 492,097,193.60-738,145,790.40-287,519,964.80

Finding the Fourth Proportional to 492,097,193.60, 738,145,790.40 and 287,519,964.80

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Solution

The fourth proportional to 492,097,193.60, 738,145,790.40 and 287,519,964.80 is: 431,279,947.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,097,193.60 : 738,145,790.40 = 287,519,964.80 : x
  2. Step 2: Convert to fraction form
    492,097,193.60/738,145,790.40 = 287,519,964.80/x
  3. Step 3: Cross multiply
    492,097,193.60x = 738,145,790.40 × 287,519,964.80
  4. Step 4: Simplify right side
    492,097,193.60x = 212,231,651,673,076,192
  5. Step 5: Solve for x
    x = 212,231,651,673,076,192/492,097,193.60
  6. Step 6: Final answer
    x = 431,279,947.20

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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.