Home / 20,530,894.25-28,330,128.63-16,355,214.16

Finding the Fourth Proportional to 20,530,894.25, 28,330,128.63 and 16,355,214.16

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Solution

The fourth proportional to 20,530,894.25, 28,330,128.63 and 16,355,214.16 is: 22,568,199.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,530,894.25 : 28,330,128.63 = 16,355,214.16 : x
  2. Step 2: Convert to fraction form
    20,530,894.25/28,330,128.63 = 16,355,214.16/x
  3. Step 3: Cross multiply
    20,530,894.25x = 28,330,128.63 × 16,355,214.16
  4. Step 4: Simplify right side
    20,530,894.25x = 463,345,320,853,172.06
  5. Step 5: Solve for x
    x = 463,345,320,853,172.06/20,530,894.25
  6. Step 6: Final answer
    x = 22,568,199.67

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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.