Finding the Fourth Proportional to 6,481,317.63, 9,721,979.68 and 1,688,994.75
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Solution
The fourth proportional to 6,481,317.63, 9,721,979.68 and 1,688,994.75 is: 2,533,492.97
Step by Step Solution
- Step 1: Write the proportion equation
6,481,317.63 : 9,721,979.68 = 1,688,994.75 : x - Step 2: Convert to fraction form
6,481,317.63/9,721,979.68 = 1,688,994.75/x - Step 3: Cross multiply
6,481,317.63x = 9,721,979.68 × 1,688,994.75 - Step 4: Simplify right side
6,481,317.63x = 16,420,372,639,126.68 - Step 5: Solve for x
x = 16,420,372,639,126.68/6,481,317.63 - Step 6: Final answer
x = 2,533,492.97
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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.