Home / 388,096,750.40-582,145,125.60-258,283,428.80

Finding the Fourth Proportional to 388,096,750.40, 582,145,125.60 and 258,283,428.80

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Solution

The fourth proportional to 388,096,750.40, 582,145,125.60 and 258,283,428.80 is: 387,425,143.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,096,750.40 : 582,145,125.60 = 258,283,428.80 : x
  2. Step 2: Convert to fraction form
    388,096,750.40/582,145,125.60 = 258,283,428.80/x
  3. Step 3: Cross multiply
    388,096,750.40x = 582,145,125.60 × 258,283,428.80
  4. Step 4: Simplify right side
    388,096,750.40x = 150,358,439,099,174,656
  5. Step 5: Solve for x
    x = 150,358,439,099,174,656/388,096,750.40
  6. Step 6: Final answer
    x = 387,425,143.20

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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.