Home / 81,549,485.06-122,263,128.86-49,193,845.52

Finding the Fourth Proportional to 81,549,485.06, 122,263,128.86 and 49,193,845.52

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Solution

The fourth proportional to 81,549,485.06, 122,263,128.86 and 49,193,845.52 is: 73,753,911.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,549,485.06 : 122,263,128.86 = 49,193,845.52 : x
  2. Step 2: Convert to fraction form
    81,549,485.06/122,263,128.86 = 49,193,845.52/x
  3. Step 3: Cross multiply
    81,549,485.06x = 122,263,128.86 × 49,193,845.52
  4. Step 4: Simplify right side
    81,549,485.06x = 6,014,593,473,073,409
  5. Step 5: Solve for x
    x = 6,014,593,473,073,409/81,549,485.06
  6. Step 6: Final answer
    x = 73,753,911.13

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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.