Home / 20,305,676.40-30,458,514.60-19,409,881.20

Finding the Fourth Proportional to 20,305,676.40, 30,458,514.60 and 19,409,881.20

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Solution

The fourth proportional to 20,305,676.40, 30,458,514.60 and 19,409,881.20 is: 29,114,821.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,305,676.40 : 30,458,514.60 = 19,409,881.20 : x
  2. Step 2: Convert to fraction form
    20,305,676.40/30,458,514.60 = 19,409,881.20/x
  3. Step 3: Cross multiply
    20,305,676.40x = 30,458,514.60 × 19,409,881.20
  4. Step 4: Simplify right side
    20,305,676.40x = 591,196,149,914,465.50
  5. Step 5: Solve for x
    x = 591,196,149,914,465.50/20,305,676.40
  6. Step 6: Final answer
    x = 29,114,821.80

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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.