Home / 21,928,789,221.28-30,262,097,141.12-11,904,284,064.80

Finding the Fourth Proportional to 21,928,789,221.28, 30,262,097,141.12 and 11,904,284,064.80

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Solution

The fourth proportional to 21,928,789,221.28, 30,262,097,141.12 and 11,904,284,064.80 is: 16,428,111,790.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,928,789,221.28 : 30,262,097,141.12 = 11,904,284,064.80 : x
  2. Step 2: Convert to fraction form
    21,928,789,221.28/30,262,097,141.12 = 11,904,284,064.80/x
  3. Step 3: Cross multiply
    21,928,789,221.28x = 30,262,097,141.12 × 11,904,284,064.80
  4. Step 4: Simplify right side
    21,928,789,221.28x = 360,248,600,764,464,431,104
  5. Step 5: Solve for x
    x = 360,248,600,764,464,431,104/21,928,789,221.28
  6. Step 6: Final answer
    x = 16,428,111,790.82

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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.