Home / 20,616,766.10-28,450,357.76-11,449,999.34

Finding the Fourth Proportional to 20,616,766.10, 28,450,357.76 and 11,449,999.34

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Solution

The fourth proportional to 20,616,766.10, 28,450,357.76 and 11,449,999.34 is: 15,800,566.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,616,766.10 : 28,450,357.76 = 11,449,999.34 : x
  2. Step 2: Convert to fraction form
    20,616,766.10/28,450,357.76 = 11,449,999.34/x
  3. Step 3: Cross multiply
    20,616,766.10x = 28,450,357.76 × 11,449,999.34
  4. Step 4: Simplify right side
    20,616,766.10x = 325,756,577,432,512.12
  5. Step 5: Solve for x
    x = 325,756,577,432,512.12/20,616,766.10
  6. Step 6: Final answer
    x = 15,800,566.20

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1.5x scale

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.