Home / 492,096,429.60-738,144,644.40-287,519,200.80

Finding the Fourth Proportional to 492,096,429.60, 738,144,644.40 and 287,519,200.80

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Solution

The fourth proportional to 492,096,429.60, 738,144,644.40 and 287,519,200.80 is: 431,278,801.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,096,429.60 : 738,144,644.40 = 287,519,200.80 : x
  2. Step 2: Convert to fraction form
    492,096,429.60/738,144,644.40 = 287,519,200.80/x
  3. Step 3: Cross multiply
    492,096,429.60x = 738,144,644.40 × 287,519,200.80
  4. Step 4: Simplify right side
    492,096,429.60x = 212,230,758,232,688,192
  5. Step 5: Solve for x
    x = 212,230,758,232,688,192/492,096,429.60
  6. Step 6: Final answer
    x = 431,278,801.20

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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.