Home / 43,114,945.60-64,672,418.40-20,440,129.60

Finding the Fourth Proportional to 43,114,945.60, 64,672,418.40 and 20,440,129.60

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Solution

The fourth proportional to 43,114,945.60, 64,672,418.40 and 20,440,129.60 is: 30,660,194.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,114,945.60 : 64,672,418.40 = 20,440,129.60 : x
  2. Step 2: Convert to fraction form
    43,114,945.60/64,672,418.40 = 20,440,129.60/x
  3. Step 3: Cross multiply
    43,114,945.60x = 64,672,418.40 × 20,440,129.60
  4. Step 4: Simplify right side
    43,114,945.60x = 1,321,912,613,641,424.75
  5. Step 5: Solve for x
    x = 1,321,912,613,641,424.75/43,114,945.60
  6. Step 6: Final answer
    x = 30,660,194.40

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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.