Home / 913,522,742.26-1,370,579,218.74-422,558,074.42

Finding the Fourth Proportional to 913,522,742.26, 1,370,579,218.74 and 422,558,074.42

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Solution

The fourth proportional to 913,522,742.26, 1,370,579,218.74 and 422,558,074.42 is: 633,973,615.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,522,742.26 : 1,370,579,218.74 = 422,558,074.42 : x
  2. Step 2: Convert to fraction form
    913,522,742.26/1,370,579,218.74 = 422,558,074.42/x
  3. Step 3: Cross multiply
    913,522,742.26x = 1,370,579,218.74 × 422,558,074.42
  4. Step 4: Simplify right side
    913,522,742.26x = 579,149,315,507,415,936
  5. Step 5: Solve for x
    x = 579,149,315,507,415,936/913,522,742.26
  6. Step 6: Final answer
    x = 633,973,615.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.