Home / 21,888,875.80-30,206,655.22-11,965,801.64

Finding the Fourth Proportional to 21,888,875.80, 30,206,655.22 and 11,965,801.64

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Solution

The fourth proportional to 21,888,875.80, 30,206,655.22 and 11,965,801.64 is: 16,512,809.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,888,875.80 : 30,206,655.22 = 11,965,801.64 : x
  2. Step 2: Convert to fraction form
    21,888,875.80/30,206,655.22 = 11,965,801.64/x
  3. Step 3: Cross multiply
    21,888,875.80x = 30,206,655.22 × 11,965,801.64
  4. Step 4: Simplify right side
    21,888,875.80x = 361,446,844,570,390.56
  5. Step 5: Solve for x
    x = 361,446,844,570,390.56/21,888,875.80
  6. Step 6: Final answer
    x = 16,512,809.88

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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.