Home / 81,331,201.20-122,091,280.20-49,019,588.40

Finding the Fourth Proportional to 81,331,201.20, 122,091,280.20 and 49,019,588.40

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Solution

The fourth proportional to 81,331,201.20, 122,091,280.20 and 49,019,588.40 is: 73,586,326.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,331,201.20 : 122,091,280.20 = 49,019,588.40 : x
  2. Step 2: Convert to fraction form
    81,331,201.20/122,091,280.20 = 49,019,588.40/x
  3. Step 3: Cross multiply
    81,331,201.20x = 122,091,280.20 × 49,019,588.40
  4. Step 4: Simplify right side
    81,331,201.20x = 5,984,864,302,633,070
  5. Step 5: Solve for x
    x = 5,984,864,302,633,070/81,331,201.20
  6. Step 6: Final answer
    x = 73,586,326.21

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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.