Home / 12,248,145.40-18,372,218.10-7,993,118.20

Finding the Fourth Proportional to 12,248,145.40, 18,372,218.10 and 7,993,118.20

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Solution

The fourth proportional to 12,248,145.40, 18,372,218.10 and 7,993,118.20 is: 11,989,677.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,248,145.40 : 18,372,218.10 = 7,993,118.20 : x
  2. Step 2: Convert to fraction form
    12,248,145.40/18,372,218.10 = 7,993,118.20/x
  3. Step 3: Cross multiply
    12,248,145.40x = 18,372,218.10 × 7,993,118.20
  4. Step 4: Simplify right side
    12,248,145.40x = 146,851,310,869,479.44
  5. Step 5: Solve for x
    x = 146,851,310,869,479.44/12,248,145.40
  6. Step 6: Final answer
    x = 11,989,677.30

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Double scale
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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.