Home / 81,549,486.65-122,263,131.24-49,193,847.11

Finding the Fourth Proportional to 81,549,486.65, 122,263,131.24 and 49,193,847.11

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Solution

The fourth proportional to 81,549,486.65, 122,263,131.24 and 49,193,847.11 is: 73,753,913.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,549,486.65 : 122,263,131.24 = 49,193,847.11 : x
  2. Step 2: Convert to fraction form
    81,549,486.65/122,263,131.24 = 49,193,847.11/x
  3. Step 3: Cross multiply
    81,549,486.65x = 122,263,131.24 × 49,193,847.11
  4. Step 4: Simplify right side
    81,549,486.65x = 6,014,593,784,799,108
  5. Step 5: Solve for x
    x = 6,014,593,784,799,108/81,549,486.65
  6. Step 6: Final answer
    x = 73,753,913.51

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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.