Home / 13,362,644.28-18,435,629.10-7,561,364.28

Finding the Fourth Proportional to 13,362,644.28, 18,435,629.10 and 7,561,364.28

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Solution

The fourth proportional to 13,362,644.28, 18,435,629.10 and 7,561,364.28 is: 10,431,955.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,362,644.28 : 18,435,629.10 = 7,561,364.28 : x
  2. Step 2: Convert to fraction form
    13,362,644.28/18,435,629.10 = 7,561,364.28/x
  3. Step 3: Cross multiply
    13,362,644.28x = 18,435,629.10 × 7,561,364.28
  4. Step 4: Simplify right side
    13,362,644.28x = 139,398,507,356,068.56
  5. Step 5: Solve for x
    x = 139,398,507,356,068.56/13,362,644.28
  6. Step 6: Final answer
    x = 10,431,955.27

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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.