Finding the Fourth Proportional to 13,267,966.19, 18,310,546.99 and 7,971,281.14
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Solution
The fourth proportional to 13,267,966.19, 18,310,546.99 and 7,971,281.14 is: 11,000,820.75
Step by Step Solution
- Step 1: Write the proportion equation
13,267,966.19 : 18,310,546.99 = 7,971,281.14 : x - Step 2: Convert to fraction form
13,267,966.19/18,310,546.99 = 7,971,281.14/x - Step 3: Cross multiply
13,267,966.19x = 18,310,546.99 × 7,971,281.14 - Step 4: Simplify right side
13,267,966.19x = 145,958,517,753,061.62 - Step 5: Solve for x
x = 145,958,517,753,061.62/13,267,966.19 - Step 6: Final answer
x = 11,000,820.75
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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.