Home / 326,919,650.12-490,381,280.94-81,276,285.32

Finding the Fourth Proportional to 326,919,650.12, 490,381,280.94 and 81,276,285.32

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Solution

The fourth proportional to 326,919,650.12, 490,381,280.94 and 81,276,285.32 is: 121,914,876.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,919,650.12 : 490,381,280.94 = 81,276,285.32 : x
  2. Step 2: Convert to fraction form
    326,919,650.12/490,381,280.94 = 81,276,285.32/x
  3. Step 3: Cross multiply
    326,919,650.12x = 490,381,280.94 × 81,276,285.32
  4. Step 4: Simplify right side
    326,919,650.12x = 39,856,368,905,266,512
  5. Step 5: Solve for x
    x = 39,856,368,905,266,512/326,919,650.12
  6. Step 6: Final answer
    x = 121,914,876.91

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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.