Home / 13,556,515.74-18,707,923.73-7,361,507.12

Finding the Fourth Proportional to 13,556,515.74, 18,707,923.73 and 7,361,507.12

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Solution

The fourth proportional to 13,556,515.74, 18,707,923.73 and 7,361,507.12 is: 10,158,842.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,556,515.74 : 18,707,923.73 = 7,361,507.12 : x
  2. Step 2: Convert to fraction form
    13,556,515.74/18,707,923.73 = 7,361,507.12/x
  3. Step 3: Cross multiply
    13,556,515.74x = 18,707,923.73 × 7,361,507.12
  4. Step 4: Simplify right side
    13,556,515.74x = 137,718,513,608,464.81
  5. Step 5: Solve for x
    x = 137,718,513,608,464.81/13,556,515.74
  6. Step 6: Final answer
    x = 10,158,842.90

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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.