Home / 84,243,713.44-126,365,571.60-20,418,305.44

Finding the Fourth Proportional to 84,243,713.44, 126,365,571.60 and 20,418,305.44

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Solution

The fourth proportional to 84,243,713.44, 126,365,571.60 and 20,418,305.44 is: 30,627,458.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,243,713.44 : 126,365,571.60 = 20,418,305.44 : x
  2. Step 2: Convert to fraction form
    84,243,713.44/126,365,571.60 = 20,418,305.44/x
  3. Step 3: Cross multiply
    84,243,713.44x = 126,365,571.60 × 20,418,305.44
  4. Step 4: Simplify right side
    84,243,713.44x = 2,580,170,838,028,989.50
  5. Step 5: Solve for x
    x = 2,580,170,838,028,989.50/84,243,713.44
  6. Step 6: Final answer
    x = 30,627,458.51

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1.5x scale

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.