Home / 12,890,245.23-17,788,183.20-7,089,026.85

Finding the Fourth Proportional to 12,890,245.23, 17,788,183.20 and 7,089,026.85

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Solution

The fourth proportional to 12,890,245.23, 17,788,183.20 and 7,089,026.85 is: 9,782,661.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,890,245.23 : 17,788,183.20 = 7,089,026.85 : x
  2. Step 2: Convert to fraction form
    12,890,245.23/17,788,183.20 = 7,089,026.85/x
  3. Step 3: Cross multiply
    12,890,245.23x = 17,788,183.20 × 7,089,026.85
  4. Step 4: Simplify right side
    12,890,245.23x = 126,100,908,317,518.91
  5. Step 5: Solve for x
    x = 126,100,908,317,518.91/12,890,245.23
  6. Step 6: Final answer
    x = 9,782,661.70

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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.