Home / 420,749,048.10-580,622,548.42-235,111,589.22

Finding the Fourth Proportional to 420,749,048.10, 580,622,548.42 and 235,111,589.22

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Solution

The fourth proportional to 420,749,048.10, 580,622,548.42 and 235,111,589.22 is: 324,447,769.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,749,048.10 : 580,622,548.42 = 235,111,589.22 : x
  2. Step 2: Convert to fraction form
    420,749,048.10/580,622,548.42 = 235,111,589.22/x
  3. Step 3: Cross multiply
    420,749,048.10x = 580,622,548.42 × 235,111,589.22
  4. Step 4: Simplify right side
    420,749,048.10x = 136,511,090,095,992,592
  5. Step 5: Solve for x
    x = 136,511,090,095,992,592/420,749,048.10
  6. Step 6: Final answer
    x = 324,447,769.31

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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.