Home / 85,414,820.06-128,326,627.73-54,769,440.64

Finding the Fourth Proportional to 85,414,820.06, 128,326,627.73 and 54,769,440.64

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Solution

The fourth proportional to 85,414,820.06, 128,326,627.73 and 54,769,440.64 is: 82,285,224.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,414,820.06 : 128,326,627.73 = 54,769,440.64 : x
  2. Step 2: Convert to fraction form
    85,414,820.06/128,326,627.73 = 54,769,440.64/x
  3. Step 3: Cross multiply
    85,414,820.06x = 128,326,627.73 × 54,769,440.64
  4. Step 4: Simplify right side
    85,414,820.06x = 7,028,377,619,989,613
  5. Step 5: Solve for x
    x = 7,028,377,619,989,613/85,414,820.06
  6. Step 6: Final answer
    x = 82,285,224.22

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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.