Home / 209,568,759.64-289,206,823.61-115,486,271.64

Finding the Fourth Proportional to 209,568,759.64, 289,206,823.61 and 115,486,271.64

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Solution

The fourth proportional to 209,568,759.64, 289,206,823.61 and 115,486,271.64 is: 159,372,121.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,568,759.64 : 289,206,823.61 = 115,486,271.64 : x
  2. Step 2: Convert to fraction form
    209,568,759.64/289,206,823.61 = 115,486,271.64/x
  3. Step 3: Cross multiply
    209,568,759.64x = 289,206,823.61 × 115,486,271.64
  4. Step 4: Simplify right side
    209,568,759.64x = 33,399,417,791,854,744
  5. Step 5: Solve for x
    x = 33,399,417,791,854,744/209,568,759.64
  6. Step 6: Final answer
    x = 159,372,121.35

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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.