Finding the Fourth Proportional to 19,413,658.40, 26,791,409.34 and 10,712,391.35
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Solution
The fourth proportional to 19,413,658.40, 26,791,409.34 and 10,712,391.35 is: 14,783,409.48
Step by Step Solution
- Step 1: Write the proportion equation
19,413,658.40 : 26,791,409.34 = 10,712,391.35 : x - Step 2: Convert to fraction form
19,413,658.40/26,791,409.34 = 10,712,391.35/x - Step 3: Cross multiply
19,413,658.40x = 26,791,409.34 × 10,712,391.35 - Step 4: Simplify right side
19,413,658.40x = 287,000,061,534,168.19 - Step 5: Solve for x
x = 287,000,061,534,168.19/19,413,658.40 - Step 6: Final answer
x = 14,783,409.48
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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.