Finding the Fourth Proportional to 15,527,060.70, 21,426,469.35 and 8,557,717.13
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Solution
The fourth proportional to 15,527,060.70, 21,426,469.35 and 8,557,717.13 is: 11,809,167.71
Step by Step Solution
- Step 1: Write the proportion equation
15,527,060.70 : 21,426,469.35 = 8,557,717.13 : x - Step 2: Convert to fraction form
15,527,060.70/21,426,469.35 = 8,557,717.13/x - Step 3: Cross multiply
15,527,060.70x = 21,426,469.35 × 8,557,717.13 - Step 4: Simplify right side
15,527,060.70x = 183,361,663,791,915 - Step 5: Solve for x
x = 183,361,663,791,915/15,527,060.70 - Step 6: Final answer
x = 11,809,167.71
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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.