Home / 315,474,001.70-473,211,002.55-261,726,289.70

Finding the Fourth Proportional to 315,474,001.70, 473,211,002.55 and 261,726,289.70

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Solution

The fourth proportional to 315,474,001.70, 473,211,002.55 and 261,726,289.70 is: 392,589,434.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,474,001.70 : 473,211,002.55 = 261,726,289.70 : x
  2. Step 2: Convert to fraction form
    315,474,001.70/473,211,002.55 = 261,726,289.70/x
  3. Step 3: Cross multiply
    315,474,001.70x = 473,211,002.55 × 261,726,289.70
  4. Step 4: Simplify right side
    315,474,001.70x = 123,851,759,942,628,736
  5. Step 5: Solve for x
    x = 123,851,759,942,628,736/315,474,001.70
  6. Step 6: Final answer
    x = 392,589,434.55

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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.