Finding the Fourth Proportional to 15,957,913.92, 22,006,972.80 and 12,705,465.12
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Solution
The fourth proportional to 15,957,913.92, 22,006,972.80 and 12,705,465.12 is: 17,521,640.15
Step by Step Solution
- Step 1: Write the proportion equation
15,957,913.92 : 22,006,972.80 = 12,705,465.12 : x - Step 2: Convert to fraction form
15,957,913.92/22,006,972.80 = 12,705,465.12/x - Step 3: Cross multiply
15,957,913.92x = 22,006,972.80 × 12,705,465.12 - Step 4: Simplify right side
15,957,913.92x = 279,608,825,307,188.72 - Step 5: Solve for x
x = 279,608,825,307,188.72/15,957,913.92 - Step 6: Final answer
x = 17,521,640.15
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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.