Home / 12,485,514.80-18,728,272.20-8,006,538.80

Finding the Fourth Proportional to 12,485,514.80, 18,728,272.20 and 8,006,538.80

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Solution

The fourth proportional to 12,485,514.80, 18,728,272.20 and 8,006,538.80 is: 12,009,808.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,485,514.80 : 18,728,272.20 = 8,006,538.80 : x
  2. Step 2: Convert to fraction form
    12,485,514.80/18,728,272.20 = 8,006,538.80/x
  3. Step 3: Cross multiply
    12,485,514.80x = 18,728,272.20 × 8,006,538.80
  4. Step 4: Simplify right side
    12,485,514.80x = 149,948,638,026,261.34
  5. Step 5: Solve for x
    x = 149,948,638,026,261.34/12,485,514.80
  6. Step 6: Final answer
    x = 12,009,808.20

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Similar ratio
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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.