Home / 20,383,662.48-28,118,734.80-12,117,845.08

Finding the Fourth Proportional to 20,383,662.48, 28,118,734.80 and 12,117,845.08

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Solution

The fourth proportional to 20,383,662.48, 28,118,734.80 and 12,117,845.08 is: 16,716,253.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,383,662.48 : 28,118,734.80 = 12,117,845.08 : x
  2. Step 2: Convert to fraction form
    20,383,662.48/28,118,734.80 = 12,117,845.08/x
  3. Step 3: Cross multiply
    20,383,662.48x = 28,118,734.80 × 12,117,845.08
  4. Step 4: Simplify right side
    20,383,662.48x = 340,738,472,152,004.81
  5. Step 5: Solve for x
    x = 340,738,472,152,004.81/20,383,662.48
  6. Step 6: Final answer
    x = 16,716,253.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.