Home / 13,460,440.80-20,190,661.20-8,085,669.60

Finding the Fourth Proportional to 13,460,440.80, 20,190,661.20 and 8,085,669.60

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Solution

The fourth proportional to 13,460,440.80, 20,190,661.20 and 8,085,669.60 is: 12,128,504.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,460,440.80 : 20,190,661.20 = 8,085,669.60 : x
  2. Step 2: Convert to fraction form
    13,460,440.80/20,190,661.20 = 8,085,669.60/x
  3. Step 3: Cross multiply
    13,460,440.80x = 20,190,661.20 × 8,085,669.60
  4. Step 4: Simplify right side
    13,460,440.80x = 163,255,015,468,739.50
  5. Step 5: Solve for x
    x = 163,255,015,468,739.50/13,460,440.80
  6. Step 6: Final answer
    x = 12,128,504.40

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1.5x scale

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.