Finding the Fourth Proportional to 7,587,343.20, 11,381,014.80 and 6,790,181.70
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Solution
The fourth proportional to 7,587,343.20, 11,381,014.80 and 6,790,181.70 is: 10,185,272.55
Step by Step Solution
- Step 1: Write the proportion equation
7,587,343.20 : 11,381,014.80 = 6,790,181.70 : x - Step 2: Convert to fraction form
7,587,343.20/11,381,014.80 = 6,790,181.70/x - Step 3: Cross multiply
7,587,343.20x = 11,381,014.80 × 6,790,181.70 - Step 4: Simplify right side
7,587,343.20x = 77,279,158,422,389.17 - Step 5: Solve for x
x = 77,279,158,422,389.17/7,587,343.20 - Step 6: Final answer
x = 10,185,272.55
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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.