Finding the Fourth Proportional to 11,387,869.18, 15,715,259.46 and 6,231,230.73
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Solution
The fourth proportional to 11,387,869.18, 15,715,259.46 and 6,231,230.73 is: 8,599,098.40
Step by Step Solution
- Step 1: Write the proportion equation
11,387,869.18 : 15,715,259.46 = 6,231,230.73 : x - Step 2: Convert to fraction form
11,387,869.18/15,715,259.46 = 6,231,230.73/x - Step 3: Cross multiply
11,387,869.18x = 15,715,259.46 × 6,231,230.73 - Step 4: Simplify right side
11,387,869.18x = 97,925,407,677,075.22 - Step 5: Solve for x
x = 97,925,407,677,075.22/11,387,869.18 - Step 6: Final answer
x = 8,599,098.40
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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.