Home / 18,775,020.10-25,956,911.37-13,872,509.86

Finding the Fourth Proportional to 18,775,020.10, 25,956,911.37 and 13,872,509.86

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Solution

The fourth proportional to 18,775,020.10, 25,956,911.37 and 13,872,509.86 is: 19,179,074.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,775,020.10 : 25,956,911.37 = 13,872,509.86 : x
  2. Step 2: Convert to fraction form
    18,775,020.10/25,956,911.37 = 13,872,509.86/x
  3. Step 3: Cross multiply
    18,775,020.10x = 25,956,911.37 × 13,872,509.86
  4. Step 4: Simplify right side
    18,775,020.10x = 360,087,508,915,471.12
  5. Step 5: Solve for x
    x = 360,087,508,915,471.12/18,775,020.10
  6. Step 6: Final answer
    x = 19,179,074.48

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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.