Home / 13,151,009,923.28-18,149,746,352.64-8,001,422,979.20

Finding the Fourth Proportional to 13,151,009,923.28, 18,149,746,352.64 and 8,001,422,979.20

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Solution

The fourth proportional to 13,151,009,923.28, 18,149,746,352.64 and 8,001,422,979.20 is: 11,042,786,704.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,151,009,923.28 : 18,149,746,352.64 = 8,001,422,979.20 : x
  2. Step 2: Convert to fraction form
    13,151,009,923.28/18,149,746,352.64 = 8,001,422,979.20/x
  3. Step 3: Cross multiply
    13,151,009,923.28x = 18,149,746,352.64 × 8,001,422,979.20
  4. Step 4: Simplify right side
    13,151,009,923.28x = 145,223,797,532,665,069,568
  5. Step 5: Solve for x
    x = 145,223,797,532,665,069,568/13,151,009,923.28
  6. Step 6: Final answer
    x = 11,042,786,704.59

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1.5x scale

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.