Home / 12,630,019.80-18,945,029.70-12,462,058.20

Finding the Fourth Proportional to 12,630,019.80, 18,945,029.70 and 12,462,058.20

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Solution

The fourth proportional to 12,630,019.80, 18,945,029.70 and 12,462,058.20 is: 18,693,087.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,630,019.80 : 18,945,029.70 = 12,462,058.20 : x
  2. Step 2: Convert to fraction form
    12,630,019.80/18,945,029.70 = 12,462,058.20/x
  3. Step 3: Cross multiply
    12,630,019.80x = 18,945,029.70 × 12,462,058.20
  4. Step 4: Simplify right side
    12,630,019.80x = 236,094,062,722,128.53
  5. Step 5: Solve for x
    x = 236,094,062,722,128.53/12,630,019.80
  6. Step 6: Final answer
    x = 18,693,087.30

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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.