Home / 18,723,999.10-28,085,998.65-8,646,303.10

Finding the Fourth Proportional to 18,723,999.10, 28,085,998.65 and 8,646,303.10

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Solution

The fourth proportional to 18,723,999.10, 28,085,998.65 and 8,646,303.10 is: 12,969,454.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,723,999.10 : 28,085,998.65 = 8,646,303.10 : x
  2. Step 2: Convert to fraction form
    18,723,999.10/28,085,998.65 = 8,646,303.10/x
  3. Step 3: Cross multiply
    18,723,999.10x = 28,085,998.65 × 8,646,303.10
  4. Step 4: Simplify right side
    18,723,999.10x = 242,840,057,194,090.78
  5. Step 5: Solve for x
    x = 242,840,057,194,090.78/18,723,999.10
  6. Step 6: Final answer
    x = 12,969,454.65

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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.