Home / 323,396,925.20-485,095,387.80-161,780,541.20

Finding the Fourth Proportional to 323,396,925.20, 485,095,387.80 and 161,780,541.20

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Solution

The fourth proportional to 323,396,925.20, 485,095,387.80 and 161,780,541.20 is: 242,670,811.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,396,925.20 : 485,095,387.80 = 161,780,541.20 : x
  2. Step 2: Convert to fraction form
    323,396,925.20/485,095,387.80 = 161,780,541.20/x
  3. Step 3: Cross multiply
    323,396,925.20x = 485,095,387.80 × 161,780,541.20
  4. Step 4: Simplify right side
    323,396,925.20x = 78,478,994,371,907,872
  5. Step 5: Solve for x
    x = 78,478,994,371,907,872/323,396,925.20
  6. Step 6: Final answer
    x = 242,670,811.80

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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.