Home / 18,242,316.40-27,345,426.60-8,640,818.80

Finding the Fourth Proportional to 18,242,316.40, 27,345,426.60 and 8,640,818.80

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Solution

The fourth proportional to 18,242,316.40, 27,345,426.60 and 8,640,818.80 is: 12,952,679.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,242,316.40 : 27,345,426.60 = 8,640,818.80 : x
  2. Step 2: Convert to fraction form
    18,242,316.40/27,345,426.60 = 8,640,818.80/x
  3. Step 3: Cross multiply
    18,242,316.40x = 27,345,426.60 × 8,640,818.80
  4. Step 4: Simplify right side
    18,242,316.40x = 236,286,876,259,300.12
  5. Step 5: Solve for x
    x = 236,286,876,259,300.12/18,242,316.40
  6. Step 6: Final answer
    x = 12,952,679.42

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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.