Home / 13,500,736.31-18,631,065.20-7,305,782.38

Finding the Fourth Proportional to 13,500,736.31, 18,631,065.20 and 7,305,782.38

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Solution

The fourth proportional to 13,500,736.31, 18,631,065.20 and 7,305,782.38 is: 10,082,006.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,500,736.31 : 18,631,065.20 = 7,305,782.38 : x
  2. Step 2: Convert to fraction form
    13,500,736.31/18,631,065.20 = 7,305,782.38/x
  3. Step 3: Cross multiply
    13,500,736.31x = 18,631,065.20 × 7,305,782.38
  4. Step 4: Simplify right side
    13,500,736.31x = 136,114,507,775,684.61
  5. Step 5: Solve for x
    x = 136,114,507,775,684.61/13,500,736.31
  6. Step 6: Final answer
    x = 10,082,006.24

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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.