Home / 12,269,080.80-18,403,621.20-8,176,985.10

Finding the Fourth Proportional to 12,269,080.80, 18,403,621.20 and 8,176,985.10

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Solution

The fourth proportional to 12,269,080.80, 18,403,621.20 and 8,176,985.10 is: 12,265,477.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,269,080.80 : 18,403,621.20 = 8,176,985.10 : x
  2. Step 2: Convert to fraction form
    12,269,080.80/18,403,621.20 = 8,176,985.10/x
  3. Step 3: Cross multiply
    12,269,080.80x = 18,403,621.20 × 8,176,985.10
  4. Step 4: Simplify right side
    12,269,080.80x = 150,486,136,338,444.09
  5. Step 5: Solve for x
    x = 150,486,136,338,444.09/12,269,080.80
  6. Step 6: Final answer
    x = 12,265,477.65

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Double scale
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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.