Home / 13,460,230.80-20,190,346.20-8,085,459.60

Finding the Fourth Proportional to 13,460,230.80, 20,190,346.20 and 8,085,459.60

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Solution

The fourth proportional to 13,460,230.80, 20,190,346.20 and 8,085,459.60 is: 12,128,189.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,460,230.80 : 20,190,346.20 = 8,085,459.60 : x
  2. Step 2: Convert to fraction form
    13,460,230.80/20,190,346.20 = 8,085,459.60/x
  3. Step 3: Cross multiply
    13,460,230.80x = 20,190,346.20 × 8,085,459.60
  4. Step 4: Simplify right side
    13,460,230.80x = 163,248,228,510,113.50
  5. Step 5: Solve for x
    x = 163,248,228,510,113.50/13,460,230.80
  6. Step 6: Final answer
    x = 12,128,189.40

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Similar ratio
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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.