Home / 20,736,012.80-31,104,019.20-19,093,721.60

Finding the Fourth Proportional to 20,736,012.80, 31,104,019.20 and 19,093,721.60

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Solution

The fourth proportional to 20,736,012.80, 31,104,019.20 and 19,093,721.60 is: 28,640,582.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,012.80 : 31,104,019.20 = 19,093,721.60 : x
  2. Step 2: Convert to fraction form
    20,736,012.80/31,104,019.20 = 19,093,721.60/x
  3. Step 3: Cross multiply
    20,736,012.80x = 31,104,019.20 × 19,093,721.60
  4. Step 4: Simplify right side
    20,736,012.80x = 593,891,483,245,854.75
  5. Step 5: Solve for x
    x = 593,891,483,245,854.75/20,736,012.80
  6. Step 6: Final answer
    x = 28,640,582.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.