Home / 18,775,021.10-25,956,912.75-13,872,510.86

Finding the Fourth Proportional to 18,775,021.10, 25,956,912.75 and 13,872,510.86

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Solution

The fourth proportional to 18,775,021.10, 25,956,912.75 and 13,872,510.86 is: 19,179,075.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,775,021.10 : 25,956,912.75 = 13,872,510.86 : x
  2. Step 2: Convert to fraction form
    18,775,021.10/25,956,912.75 = 13,872,510.86/x
  3. Step 3: Cross multiply
    18,775,021.10x = 25,956,912.75 × 13,872,510.86
  4. Step 4: Simplify right side
    18,775,021.10x = 360,087,554,016,447.44
  5. Step 5: Solve for x
    x = 360,087,554,016,447.44/18,775,021.10
  6. Step 6: Final answer
    x = 19,179,075.86

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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.