Home / 315,105,724.20-472,280,672.70-161,672,802.60

Finding the Fourth Proportional to 315,105,724.20, 472,280,672.70 and 161,672,802.60

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Solution

The fourth proportional to 315,105,724.20, 472,280,672.70 and 161,672,802.60 is: 242,315,305.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,105,724.20 : 472,280,672.70 = 161,672,802.60 : x
  2. Step 2: Convert to fraction form
    315,105,724.20/472,280,672.70 = 161,672,802.60/x
  3. Step 3: Cross multiply
    315,105,724.20x = 472,280,672.70 × 161,672,802.60
  4. Step 4: Simplify right side
    315,105,724.20x = 76,354,939,969,222,304
  5. Step 5: Solve for x
    x = 76,354,939,969,222,304/315,105,724.20
  6. Step 6: Final answer
    x = 242,315,305.96

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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.