Home / 13,410,092.35-20,128,129.31-12,681,821.35

Finding the Fourth Proportional to 13,410,092.35, 20,128,129.31 and 12,681,821.35

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Solution

The fourth proportional to 13,410,092.35, 20,128,129.31 and 12,681,821.35 is: 19,035,017.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,410,092.35 : 20,128,129.31 = 12,681,821.35 : x
  2. Step 2: Convert to fraction form
    13,410,092.35/20,128,129.31 = 12,681,821.35/x
  3. Step 3: Cross multiply
    13,410,092.35x = 20,128,129.31 × 12,681,821.35
  4. Step 4: Simplify right side
    13,410,092.35x = 255,261,340,019,118.75
  5. Step 5: Solve for x
    x = 255,261,340,019,118.75/13,410,092.35
  6. Step 6: Final answer
    x = 19,035,017.31

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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.