Finding the Fourth Proportional to 7,772,971.22, 11,660,951.25 and 2,980,286.67
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Solution
The fourth proportional to 7,772,971.22, 11,660,951.25 and 2,980,286.67 is: 4,471,002.99
Step by Step Solution
- Step 1: Write the proportion equation
7,772,971.22 : 11,660,951.25 = 2,980,286.67 : x - Step 2: Convert to fraction form
7,772,971.22/11,660,951.25 = 2,980,286.67/x - Step 3: Cross multiply
7,772,971.22x = 11,660,951.25 × 2,980,286.67 - Step 4: Simplify right side
7,772,971.22x = 34,752,977,569,894.84 - Step 5: Solve for x
x = 34,752,977,569,894.84/7,772,971.22 - Step 6: Final answer
x = 4,471,002.99
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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.