Home / 20,645,880.48-28,483,131.60-11,942,436.96

Finding the Fourth Proportional to 20,645,880.48, 28,483,131.60 and 11,942,436.96

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Solution

The fourth proportional to 20,645,880.48, 28,483,131.60 and 11,942,436.96 is: 16,475,829.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,645,880.48 : 28,483,131.60 = 11,942,436.96 : x
  2. Step 2: Convert to fraction form
    20,645,880.48/28,483,131.60 = 11,942,436.96/x
  3. Step 3: Cross multiply
    20,645,880.48x = 28,483,131.60 × 11,942,436.96
  4. Step 4: Simplify right side
    20,645,880.48x = 340,158,003,556,384
  5. Step 5: Solve for x
    x = 340,158,003,556,384/20,645,880.48
  6. Step 6: Final answer
    x = 16,475,829.35

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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.