Home / 13,407,416.70-20,111,125.05-4,431,968.70

Finding the Fourth Proportional to 13,407,416.70, 20,111,125.05 and 4,431,968.70

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Solution

The fourth proportional to 13,407,416.70, 20,111,125.05 and 4,431,968.70 is: 6,647,953.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,407,416.70 : 20,111,125.05 = 4,431,968.70 : x
  2. Step 2: Convert to fraction form
    13,407,416.70/20,111,125.05 = 4,431,968.70/x
  3. Step 3: Cross multiply
    13,407,416.70x = 20,111,125.05 × 4,431,968.70
  4. Step 4: Simplify right side
    13,407,416.70x = 89,131,876,743,385.94
  5. Step 5: Solve for x
    x = 89,131,876,743,385.94/13,407,416.70
  6. Step 6: Final answer
    x = 6,647,953.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.