Home / 79,840,810.31-110,153,255.42-65,131,048.31

Finding the Fourth Proportional to 79,840,810.31, 110,153,255.42 and 65,131,048.31

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Solution

The fourth proportional to 79,840,810.31, 110,153,255.42 and 65,131,048.31 is: 89,858,769.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,840,810.31 : 110,153,255.42 = 65,131,048.31 : x
  2. Step 2: Convert to fraction form
    79,840,810.31/110,153,255.42 = 65,131,048.31/x
  3. Step 3: Cross multiply
    79,840,810.31x = 110,153,255.42 × 65,131,048.31
  4. Step 4: Simplify right side
    79,840,810.31x = 7,174,396,999,938,135
  5. Step 5: Solve for x
    x = 7,174,396,999,938,135/79,840,810.31
  6. Step 6: Final answer
    x = 89,858,769.87

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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.