Home / 315,474,037.20-473,211,055.80-261,726,325.20

Finding the Fourth Proportional to 315,474,037.20, 473,211,055.80 and 261,726,325.20

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Solution

The fourth proportional to 315,474,037.20, 473,211,055.80 and 261,726,325.20 is: 392,589,487.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,474,037.20 : 473,211,055.80 = 261,726,325.20 : x
  2. Step 2: Convert to fraction form
    315,474,037.20/473,211,055.80 = 261,726,325.20/x
  3. Step 3: Cross multiply
    315,474,037.20x = 473,211,055.80 × 261,726,325.20
  4. Step 4: Simplify right side
    315,474,037.20x = 123,851,790,678,546,144
  5. Step 5: Solve for x
    x = 123,851,790,678,546,144/315,474,037.20
  6. Step 6: Final answer
    x = 392,589,487.80

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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.