Home / 20,766,390.40-31,149,585.60-12,263,334.40

Finding the Fourth Proportional to 20,766,390.40, 31,149,585.60 and 12,263,334.40

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Solution

The fourth proportional to 20,766,390.40, 31,149,585.60 and 12,263,334.40 is: 18,395,001.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,766,390.40 : 31,149,585.60 = 12,263,334.40 : x
  2. Step 2: Convert to fraction form
    20,766,390.40/31,149,585.60 = 12,263,334.40/x
  3. Step 3: Cross multiply
    20,766,390.40x = 31,149,585.60 × 12,263,334.40
  4. Step 4: Simplify right side
    20,766,390.40x = 381,997,784,634,224.69
  5. Step 5: Solve for x
    x = 381,997,784,634,224.69/20,766,390.40
  6. Step 6: Final answer
    x = 18,395,001.60

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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.