Home / 18,139,997.57-25,033,196.94-9,991,235.57

Finding the Fourth Proportional to 18,139,997.57, 25,033,196.94 and 9,991,235.57

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Solution

The fourth proportional to 18,139,997.57, 25,033,196.94 and 9,991,235.57 is: 13,787,905.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,139,997.57 : 25,033,196.94 = 9,991,235.57 : x
  2. Step 2: Convert to fraction form
    18,139,997.57/25,033,196.94 = 9,991,235.57/x
  3. Step 3: Cross multiply
    18,139,997.57x = 25,033,196.94 × 9,991,235.57
  4. Step 4: Simplify right side
    18,139,997.57x = 250,112,567,697,743.19
  5. Step 5: Solve for x
    x = 250,112,567,697,743.19/18,139,997.57
  6. Step 6: Final answer
    x = 13,787,905.25

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.