Home / 12,522,021.60-18,783,032.40-7,714,120.80

Finding the Fourth Proportional to 12,522,021.60, 18,783,032.40 and 7,714,120.80

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Solution

The fourth proportional to 12,522,021.60, 18,783,032.40 and 7,714,120.80 is: 11,571,181.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,522,021.60 : 18,783,032.40 = 7,714,120.80 : x
  2. Step 2: Convert to fraction form
    12,522,021.60/18,783,032.40 = 7,714,120.80/x
  3. Step 3: Cross multiply
    12,522,021.60x = 18,783,032.40 × 7,714,120.80
  4. Step 4: Simplify right side
    12,522,021.60x = 144,894,580,923,913.91
  5. Step 5: Solve for x
    x = 144,894,580,923,913.91/12,522,021.60
  6. Step 6: Final answer
    x = 11,571,181.20

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Double scale
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Similar ratio
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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.