Finding the Fourth Proportional to 15,717,620.80, 21,690,283.68 and 8,842,102.87
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Solution
The fourth proportional to 15,717,620.80, 21,690,283.68 and 8,842,102.87 is: 12,202,083.38
Step by Step Solution
- Step 1: Write the proportion equation
15,717,620.80 : 21,690,283.68 = 8,842,102.87 : x - Step 2: Convert to fraction form
15,717,620.80/21,690,283.68 = 8,842,102.87/x - Step 3: Cross multiply
15,717,620.80x = 21,690,283.68 × 8,842,102.87 - Step 4: Simplify right side
15,717,620.80x = 191,787,719,578,042.16 - Step 5: Solve for x
x = 191,787,719,578,042.16/15,717,620.80 - Step 6: Final answer
x = 12,202,083.38
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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.