Finding the Fourth Proportional to 8,205,868.18, 12,297,799.76 and 6,386,430.14
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Solution
The fourth proportional to 8,205,868.18, 12,297,799.76 and 6,386,430.14 is: 9,571,082.22
Step by Step Solution
- Step 1: Write the proportion equation
8,205,868.18 : 12,297,799.76 = 6,386,430.14 : x - Step 2: Convert to fraction form
8,205,868.18/12,297,799.76 = 6,386,430.14/x - Step 3: Cross multiply
8,205,868.18x = 12,297,799.76 × 6,386,430.14 - Step 4: Simplify right side
8,205,868.18x = 78,539,038,981,459.77 - Step 5: Solve for x
x = 78,539,038,981,459.77/8,205,868.18 - Step 6: Final answer
x = 9,571,082.22
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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.