Home / 15,415,504.38-21,271,845.66-8,538,701.58

Finding the Fourth Proportional to 15,415,504.38, 21,271,845.66 and 8,538,701.58

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Solution

The fourth proportional to 15,415,504.38, 21,271,845.66 and 8,538,701.58 is: 11,782,549.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,415,504.38 : 21,271,845.66 = 8,538,701.58 : x
  2. Step 2: Convert to fraction form
    15,415,504.38/21,271,845.66 = 8,538,701.58/x
  3. Step 3: Cross multiply
    15,415,504.38x = 21,271,845.66 × 8,538,701.58
  4. Step 4: Simplify right side
    15,415,504.38x = 181,633,942,146,558.16
  5. Step 5: Solve for x
    x = 181,633,942,146,558.16/15,415,504.38
  6. Step 6: Final answer
    x = 11,782,549.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.