Home / 214,517,563.80-321,776,345.70-78,207,394.20

Finding the Fourth Proportional to 214,517,563.80, 321,776,345.70 and 78,207,394.20

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Solution

The fourth proportional to 214,517,563.80, 321,776,345.70 and 78,207,394.20 is: 117,311,091.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,517,563.80 : 321,776,345.70 = 78,207,394.20 : x
  2. Step 2: Convert to fraction form
    214,517,563.80/321,776,345.70 = 78,207,394.20/x
  3. Step 3: Cross multiply
    214,517,563.80x = 321,776,345.70 × 78,207,394.20
  4. Step 4: Simplify right side
    214,517,563.80x = 25,165,289,512,395,376
  5. Step 5: Solve for x
    x = 25,165,289,512,395,376/214,517,563.80
  6. Step 6: Final answer
    x = 117,311,091.30

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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.