Finding the Fourth Proportional to 15,926,887.07, 21,980,970.11 and 9,052,402.49
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Solution
The fourth proportional to 15,926,887.07, 21,980,970.11 and 9,052,402.49 is: 12,493,375.99
Step by Step Solution
- Step 1: Write the proportion equation
15,926,887.07 : 21,980,970.11 = 9,052,402.49 : x - Step 2: Convert to fraction form
15,926,887.07/21,980,970.11 = 9,052,402.49/x - Step 3: Cross multiply
15,926,887.07x = 21,980,970.11 × 9,052,402.49 - Step 4: Simplify right side
15,926,887.07x = 198,980,588,511,117.56 - Step 5: Solve for x
x = 198,980,588,511,117.56/15,926,887.07 - Step 6: Final answer
x = 12,493,375.99
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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.