Home / 13,840,003.90-20,760,005.85-13,210,147.90

Finding the Fourth Proportional to 13,840,003.90, 20,760,005.85 and 13,210,147.90

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Solution

The fourth proportional to 13,840,003.90, 20,760,005.85 and 13,210,147.90 is: 19,815,221.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,840,003.90 : 20,760,005.85 = 13,210,147.90 : x
  2. Step 2: Convert to fraction form
    13,840,003.90/20,760,005.85 = 13,210,147.90/x
  3. Step 3: Cross multiply
    13,840,003.90x = 20,760,005.85 × 13,210,147.90
  4. Step 4: Simplify right side
    13,840,003.90x = 274,242,747,683,365.25
  5. Step 5: Solve for x
    x = 274,242,747,683,365.25/13,840,003.90
  6. Step 6: Final answer
    x = 19,815,221.85

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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.