Finding the Fourth Proportional to 7,876,902.45, 11,814,303.83 and 2,196,651.09
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Solution
The fourth proportional to 7,876,902.45, 11,814,303.83 and 2,196,651.09 is: 3,294,683.86
Step by Step Solution
- Step 1: Write the proportion equation
7,876,902.45 : 11,814,303.83 = 2,196,651.09 : x - Step 2: Convert to fraction form
7,876,902.45/11,814,303.83 = 2,196,651.09/x - Step 3: Cross multiply
7,876,902.45x = 11,814,303.83 × 2,196,651.09 - Step 4: Simplify right side
7,876,902.45x = 25,951,903,374,777.41 - Step 5: Solve for x
x = 25,951,903,374,777.41/7,876,902.45 - Step 6: Final answer
x = 3,294,683.86
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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.