Home / 18,181,199.21-25,090,587.27-9,921,793.70

Finding the Fourth Proportional to 18,181,199.21, 25,090,587.27 and 9,921,793.70

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Solution

The fourth proportional to 18,181,199.21, 25,090,587.27 and 9,921,793.70 is: 13,692,365.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,181,199.21 : 25,090,587.27 = 9,921,793.70 : x
  2. Step 2: Convert to fraction form
    18,181,199.21/25,090,587.27 = 9,921,793.70/x
  3. Step 3: Cross multiply
    18,181,199.21x = 25,090,587.27 × 9,921,793.70
  4. Step 4: Simplify right side
    18,181,199.21x = 248,943,630,579,333.28
  5. Step 5: Solve for x
    x = 248,943,630,579,333.28/18,181,199.21
  6. Step 6: Final answer
    x = 13,692,365.82

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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.