Home / 420,749,048.60-580,622,549.11-235,111,589.72

Finding the Fourth Proportional to 420,749,048.60, 580,622,549.11 and 235,111,589.72

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Solution

The fourth proportional to 420,749,048.60, 580,622,549.11 and 235,111,589.72 is: 324,447,770.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,749,048.60 : 580,622,549.11 = 235,111,589.72 : x
  2. Step 2: Convert to fraction form
    420,749,048.60/580,622,549.11 = 235,111,589.72/x
  3. Step 3: Cross multiply
    420,749,048.60x = 580,622,549.11 × 235,111,589.72
  4. Step 4: Simplify right side
    420,749,048.60x = 136,511,090,548,530,880
  5. Step 5: Solve for x
    x = 136,511,090,548,530,880/420,749,048.60
  6. Step 6: Final answer
    x = 324,447,770.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.