Home / 20,549,317.19-30,781,082.19-12,325,879.74

Finding the Fourth Proportional to 20,549,317.19, 30,781,082.19 and 12,325,879.74

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Solution

The fourth proportional to 20,549,317.19, 30,781,082.19 and 12,325,879.74 is: 18,463,091.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,549,317.19 : 30,781,082.19 = 12,325,879.74 : x
  2. Step 2: Convert to fraction form
    20,549,317.19/30,781,082.19 = 12,325,879.74/x
  3. Step 3: Cross multiply
    20,549,317.19x = 30,781,082.19 × 12,325,879.74
  4. Step 4: Simplify right side
    20,549,317.19x = 379,403,917,340,995.88
  5. Step 5: Solve for x
    x = 379,403,917,340,995.88/20,549,317.19
  6. Step 6: Final answer
    x = 18,463,091.20

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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.