Finding the Fourth Proportional to 7,776,069.18, 10,730,982.15 and 4,338,310.74
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Solution
The fourth proportional to 7,776,069.18, 10,730,982.15 and 4,338,310.74 is: 5,986,872.55
Step by Step Solution
- Step 1: Write the proportion equation
7,776,069.18 : 10,730,982.15 = 4,338,310.74 : x - Step 2: Convert to fraction form
7,776,069.18/10,730,982.15 = 4,338,310.74/x - Step 3: Cross multiply
7,776,069.18x = 10,730,982.15 × 4,338,310.74 - Step 4: Simplify right side
7,776,069.18x = 46,554,335,112,093.30 - Step 5: Solve for x
x = 46,554,335,112,093.30/7,776,069.18 - Step 6: Final answer
x = 5,986,872.55
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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.