Home / 18,181,200.21-25,090,588.65-9,921,794.70

Finding the Fourth Proportional to 18,181,200.21, 25,090,588.65 and 9,921,794.70

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Solution

The fourth proportional to 18,181,200.21, 25,090,588.65 and 9,921,794.70 is: 13,692,367.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,181,200.21 : 25,090,588.65 = 9,921,794.70 : x
  2. Step 2: Convert to fraction form
    18,181,200.21/25,090,588.65 = 9,921,794.70/x
  3. Step 3: Cross multiply
    18,181,200.21x = 25,090,588.65 × 9,921,794.70
  4. Step 4: Simplify right side
    18,181,200.21x = 248,943,669,487,450.12
  5. Step 5: Solve for x
    x = 248,943,669,487,450.12/18,181,200.21
  6. Step 6: Final answer
    x = 13,692,367.20

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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.