Home / 28,404,003.80-42,606,005.70-18,200,336.60

Finding the Fourth Proportional to 28,404,003.80, 42,606,005.70 and 18,200,336.60

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Solution

The fourth proportional to 28,404,003.80, 42,606,005.70 and 18,200,336.60 is: 27,300,504.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,404,003.80 : 42,606,005.70 = 18,200,336.60 : x
  2. Step 2: Convert to fraction form
    28,404,003.80/42,606,005.70 = 18,200,336.60/x
  3. Step 3: Cross multiply
    28,404,003.80x = 42,606,005.70 × 18,200,336.60
  4. Step 4: Simplify right side
    28,404,003.80x = 775,443,644,921,518.75
  5. Step 5: Solve for x
    x = 775,443,644,921,518.75/28,404,003.80
  6. Step 6: Final answer
    x = 27,300,504.90

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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.