Home / 20,353,485.60-30,530,228.40-11,843,431.20

Finding the Fourth Proportional to 20,353,485.60, 30,530,228.40 and 11,843,431.20

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Solution

The fourth proportional to 20,353,485.60, 30,530,228.40 and 11,843,431.20 is: 17,765,146.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,353,485.60 : 30,530,228.40 = 11,843,431.20 : x
  2. Step 2: Convert to fraction form
    20,353,485.60/30,530,228.40 = 11,843,431.20/x
  3. Step 3: Cross multiply
    20,353,485.60x = 30,530,228.40 × 11,843,431.20
  4. Step 4: Simplify right side
    20,353,485.60x = 361,582,659,575,686.06
  5. Step 5: Solve for x
    x = 361,582,659,575,686.06/20,353,485.60
  6. Step 6: Final answer
    x = 17,765,146.80

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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.