Finding the Fourth Proportional to 11,810,772.18, 16,298,865.09 and 6,378,263.70
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Solution
The fourth proportional to 11,810,772.18, 16,298,865.09 and 6,378,263.70 is: 8,802,003.63
Step by Step Solution
- Step 1: Write the proportion equation
11,810,772.18 : 16,298,865.09 = 6,378,263.70 : x - Step 2: Convert to fraction form
11,810,772.18/16,298,865.09 = 6,378,263.70/x - Step 3: Cross multiply
11,810,772.18x = 16,298,865.09 × 6,378,263.70 - Step 4: Simplify right side
11,810,772.18x = 103,958,459,554,744.23 - Step 5: Solve for x
x = 103,958,459,554,744.23/11,810,772.18 - Step 6: Final answer
x = 8,802,003.63
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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.