Home / 72,414,003.60-108,621,005.40-21,301,189.20

Finding the Fourth Proportional to 72,414,003.60, 108,621,005.40 and 21,301,189.20

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Solution

The fourth proportional to 72,414,003.60, 108,621,005.40 and 21,301,189.20 is: 31,951,783.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,414,003.60 : 108,621,005.40 = 21,301,189.20 : x
  2. Step 2: Convert to fraction form
    72,414,003.60/108,621,005.40 = 21,301,189.20/x
  3. Step 3: Cross multiply
    72,414,003.60x = 108,621,005.40 × 21,301,189.20
  4. Step 4: Simplify right side
    72,414,003.60x = 2,313,756,587,119,621.50
  5. Step 5: Solve for x
    x = 2,313,756,587,119,621.50/72,414,003.60
  6. Step 6: Final answer
    x = 31,951,783.80

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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.