Home / 20,383,856.20-30,575,784.30-18,824,962.60

Finding the Fourth Proportional to 20,383,856.20, 30,575,784.30 and 18,824,962.60

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Solution

The fourth proportional to 20,383,856.20, 30,575,784.30 and 18,824,962.60 is: 28,237,443.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,383,856.20 : 30,575,784.30 = 18,824,962.60 : x
  2. Step 2: Convert to fraction form
    20,383,856.20/30,575,784.30 = 18,824,962.60/x
  3. Step 3: Cross multiply
    20,383,856.20x = 30,575,784.30 × 18,824,962.60
  4. Step 4: Simplify right side
    20,383,856.20x = 575,587,995,913,167.25
  5. Step 5: Solve for x
    x = 575,587,995,913,167.25/20,383,856.20
  6. Step 6: Final answer
    x = 28,237,443.90

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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.