Home / 18,801,115.40-28,201,673.10-12,409,872.80

Finding the Fourth Proportional to 18,801,115.40, 28,201,673.10 and 12,409,872.80

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Solution

The fourth proportional to 18,801,115.40, 28,201,673.10 and 12,409,872.80 is: 18,614,809.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,801,115.40 : 28,201,673.10 = 12,409,872.80 : x
  2. Step 2: Convert to fraction form
    18,801,115.40/28,201,673.10 = 12,409,872.80/x
  3. Step 3: Cross multiply
    18,801,115.40x = 28,201,673.10 × 12,409,872.80
  4. Step 4: Simplify right side
    18,801,115.40x = 349,979,175,918,181.75
  5. Step 5: Solve for x
    x = 349,979,175,918,181.75/18,801,115.40
  6. Step 6: Final answer
    x = 18,614,809.20

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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.