Finding the Fourth Proportional to 7,990,973.12, 11,986,109.28 and 2,311,071.68
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Solution
The fourth proportional to 7,990,973.12, 11,986,109.28 and 2,311,071.68 is: 3,466,506.18
Step by Step Solution
- Step 1: Write the proportion equation
7,990,973.12 : 11,986,109.28 = 2,311,071.68 : x - Step 2: Convert to fraction form
7,990,973.12/11,986,109.28 = 2,311,071.68/x - Step 3: Cross multiply
7,990,973.12x = 11,986,109.28 × 2,311,071.68 - Step 4: Simplify right side
7,990,973.12x = 27,700,757,710,393.19 - Step 5: Solve for x
x = 27,700,757,710,393.19/7,990,973.12 - Step 6: Final answer
x = 3,466,506.18
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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.