Home / 13,739,905.40-20,609,858.10-8,066,535.80

Finding the Fourth Proportional to 13,739,905.40, 20,609,858.10 and 8,066,535.80

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Solution

The fourth proportional to 13,739,905.40, 20,609,858.10 and 8,066,535.80 is: 12,099,803.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,739,905.40 : 20,609,858.10 = 8,066,535.80 : x
  2. Step 2: Convert to fraction form
    13,739,905.40/20,609,858.10 = 8,066,535.80/x
  3. Step 3: Cross multiply
    13,739,905.40x = 20,609,858.10 × 8,066,535.80
  4. Step 4: Simplify right side
    13,739,905.40x = 166,250,158,196,570
  5. Step 5: Solve for x
    x = 166,250,158,196,570/13,739,905.40
  6. Step 6: Final answer
    x = 12,099,803.70

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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.