Finding the Fourth Proportional to 9,209,885.86, 12,705,721.62 and 6,758,236.99
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Solution
The fourth proportional to 9,209,885.86, 12,705,721.62 and 6,758,236.99 is: 9,323,489.90
Step by Step Solution
- Step 1: Write the proportion equation
9,209,885.86 : 12,705,721.62 = 6,758,236.99 : x - Step 2: Convert to fraction form
9,209,885.86/12,705,721.62 = 6,758,236.99/x - Step 3: Cross multiply
9,209,885.86x = 12,705,721.62 × 6,758,236.99 - Step 4: Simplify right side
9,209,885.86x = 85,868,277,836,926.72 - Step 5: Solve for x
x = 85,868,277,836,926.72/9,209,885.86 - Step 6: Final answer
x = 9,323,489.90
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.