Home / 20,694,973.52-28,559,091.78-11,275,717.64

Finding the Fourth Proportional to 20,694,973.52, 28,559,091.78 and 11,275,717.64

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Solution

The fourth proportional to 20,694,973.52, 28,559,091.78 and 11,275,717.64 is: 15,560,505.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,694,973.52 : 28,559,091.78 = 11,275,717.64 : x
  2. Step 2: Convert to fraction form
    20,694,973.52/28,559,091.78 = 11,275,717.64/x
  3. Step 3: Cross multiply
    20,694,973.52x = 28,559,091.78 × 11,275,717.64
  4. Step 4: Simplify right side
    20,694,973.52x = 322,024,254,966,125
  5. Step 5: Solve for x
    x = 322,024,254,966,125/20,694,973.52
  6. Step 6: Final answer
    x = 15,560,505.77

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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.