Home / 492,096,708.60-738,145,062.90-287,519,479.80

Finding the Fourth Proportional to 492,096,708.60, 738,145,062.90 and 287,519,479.80

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Solution

The fourth proportional to 492,096,708.60, 738,145,062.90 and 287,519,479.80 is: 431,279,219.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,096,708.60 : 738,145,062.90 = 287,519,479.80 : x
  2. Step 2: Convert to fraction form
    492,096,708.60/738,145,062.90 = 287,519,479.80/x
  3. Step 3: Cross multiply
    492,096,708.60x = 738,145,062.90 × 287,519,479.80
  4. Step 4: Simplify right side
    492,096,708.60x = 212,231,084,501,946,272
  5. Step 5: Solve for x
    x = 212,231,084,501,946,272/492,096,708.60
  6. Step 6: Final answer
    x = 431,279,219.70

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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.