Finding the Fourth Proportional to 13,265,857.14, 19,857,597.18 and 7,185,486.84
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Solution
The fourth proportional to 13,265,857.14, 19,857,597.18 and 7,185,486.84 is: 10,755,920.38
Step by Step Solution
- Step 1: Write the proportion equation
13,265,857.14 : 19,857,597.18 = 7,185,486.84 : x - Step 2: Convert to fraction form
13,265,857.14/19,857,597.18 = 7,185,486.84/x - Step 3: Cross multiply
13,265,857.14x = 19,857,597.18 × 7,185,486.84 - Step 4: Simplify right side
13,265,857.14x = 142,686,503,210,911.09 - Step 5: Solve for x
x = 142,686,503,210,911.09/13,265,857.14 - Step 6: Final answer
x = 10,755,920.38
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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.