Home / 20,626,050.40-30,943,741.20-12,101,999.20

Finding the Fourth Proportional to 20,626,050.40, 30,943,741.20 and 12,101,999.20

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Solution

The fourth proportional to 20,626,050.40, 30,943,741.20 and 12,101,999.20 is: 18,155,736.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,626,050.40 : 30,943,741.20 = 12,101,999.20 : x
  2. Step 2: Convert to fraction form
    20,626,050.40/30,943,741.20 = 12,101,999.20/x
  3. Step 3: Cross multiply
    20,626,050.40x = 30,943,741.20 × 12,101,999.20
  4. Step 4: Simplify right side
    20,626,050.40x = 374,481,131,247,407
  5. Step 5: Solve for x
    x = 374,481,131,247,407/20,626,050.40
  6. Step 6: Final answer
    x = 18,155,736.26

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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.