Home / 9,235,356.31-12,744,809-5,160,975.31

Finding the Fourth Proportional to 9,235,356.31, 12,744,809 and 5,160,975.31

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Solution

The fourth proportional to 9,235,356.31, 12,744,809 and 5,160,975.31 is: 7,122,155.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,235,356.31 : 12,744,809 = 5,160,975.31 : x
  2. Step 2: Convert to fraction form
    9,235,356.31/12,744,809 = 5,160,975.31/x
  3. Step 3: Cross multiply
    9,235,356.31x = 12,744,809 × 5,160,975.31
  4. Step 4: Simplify right side
    9,235,356.31x = 65,775,644,579,665.78
  5. Step 5: Solve for x
    x = 65,775,644,579,665.78/9,235,356.31
  6. Step 6: Final answer
    x = 7,122,155.59

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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.