Finding the Fourth Proportional to 10,368,826.80, 15,526,024.20 and 7,319,727.60
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Solution
The fourth proportional to 10,368,826.80, 15,526,024.20 and 7,319,727.60 is: 10,960,378.65
Step by Step Solution
- Step 1: Write the proportion equation
10,368,826.80 : 15,526,024.20 = 7,319,727.60 : x - Step 2: Convert to fraction form
10,368,826.80/15,526,024.20 = 7,319,727.60/x - Step 3: Cross multiply
10,368,826.80x = 15,526,024.20 × 7,319,727.60 - Step 4: Simplify right side
10,368,826.80x = 113,646,267,855,007.91 - Step 5: Solve for x
x = 113,646,267,855,007.91/10,368,826.80 - Step 6: Final answer
x = 10,960,378.65
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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.