Home / 20,488,091.32-28,273,636.78-11,195,661.80

Finding the Fourth Proportional to 20,488,091.32, 28,273,636.78 and 11,195,661.80

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Solution

The fourth proportional to 20,488,091.32, 28,273,636.78 and 11,195,661.80 is: 15,450,051.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,488,091.32 : 28,273,636.78 = 11,195,661.80 : x
  2. Step 2: Convert to fraction form
    20,488,091.32/28,273,636.78 = 11,195,661.80/x
  3. Step 3: Cross multiply
    20,488,091.32x = 28,273,636.78 × 11,195,661.80
  4. Step 4: Simplify right side
    20,488,091.32x = 316,542,075,287,615.94
  5. Step 5: Solve for x
    x = 316,542,075,287,615.94/20,488,091.32
  6. Step 6: Final answer
    x = 15,450,051.95

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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.