Home / 18,768,015.40-28,152,023.10-11,556,164.20

Finding the Fourth Proportional to 18,768,015.40, 28,152,023.10 and 11,556,164.20

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Solution

The fourth proportional to 18,768,015.40, 28,152,023.10 and 11,556,164.20 is: 17,334,246.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,768,015.40 : 28,152,023.10 = 11,556,164.20 : x
  2. Step 2: Convert to fraction form
    18,768,015.40/28,152,023.10 = 11,556,164.20/x
  3. Step 3: Cross multiply
    18,768,015.40x = 28,152,023.10 × 11,556,164.20
  4. Step 4: Simplify right side
    18,768,015.40x = 325,329,401,505,793
  5. Step 5: Solve for x
    x = 325,329,401,505,793/18,768,015.40
  6. Step 6: Final answer
    x = 17,334,246.30

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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.