Home / 18,852,584.32-28,239,641.16-11,995,189.12

Finding the Fourth Proportional to 18,852,584.32, 28,239,641.16 and 11,995,189.12

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Solution

The fourth proportional to 18,852,584.32, 28,239,641.16 and 11,995,189.12 is: 17,967,819.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,852,584.32 : 28,239,641.16 = 11,995,189.12 : x
  2. Step 2: Convert to fraction form
    18,852,584.32/28,239,641.16 = 11,995,189.12/x
  3. Step 3: Cross multiply
    18,852,584.32x = 28,239,641.16 × 11,995,189.12
  4. Step 4: Simplify right side
    18,852,584.32x = 338,739,836,395,136.19
  5. Step 5: Solve for x
    x = 338,739,836,395,136.19/18,852,584.32
  6. Step 6: Final answer
    x = 17,967,819.72

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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.