Home / 20,616,773.63-28,450,368.12-11,450,006.87

Finding the Fourth Proportional to 20,616,773.63, 28,450,368.12 and 11,450,006.87

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Solution

The fourth proportional to 20,616,773.63, 28,450,368.12 and 11,450,006.87 is: 15,800,576.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,616,773.63 : 28,450,368.12 = 11,450,006.87 : x
  2. Step 2: Convert to fraction form
    20,616,773.63/28,450,368.12 = 11,450,006.87/x
  3. Step 3: Cross multiply
    20,616,773.63x = 28,450,368.12 × 11,450,006.87
  4. Step 4: Simplify right side
    20,616,773.63x = 325,756,910,499,154.94
  5. Step 5: Solve for x
    x = 325,756,910,499,154.94/20,616,773.63
  6. Step 6: Final answer
    x = 15,800,576.57

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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.