Home / 13,126,490.40-18,122,540.22-9,003,295.56

Finding the Fourth Proportional to 13,126,490.40, 18,122,540.22 and 9,003,295.56

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Solution

The fourth proportional to 13,126,490.40, 18,122,540.22 and 9,003,295.56 is: 12,430,023.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,126,490.40 : 18,122,540.22 = 9,003,295.56 : x
  2. Step 2: Convert to fraction form
    13,126,490.40/18,122,540.22 = 9,003,295.56/x
  3. Step 3: Cross multiply
    13,126,490.40x = 18,122,540.22 × 9,003,295.56
  4. Step 4: Simplify right side
    13,126,490.40x = 163,162,585,898,647.44
  5. Step 5: Solve for x
    x = 163,162,585,898,647.44/13,126,490.40
  6. Step 6: Final answer
    x = 12,430,023.63

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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.