Finding the Fourth Proportional to 9,860,121.81, 14,857,485.30 and 8,102,380.70
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Solution
The fourth proportional to 9,860,121.81, 14,857,485.30 and 8,102,380.70 is: 12,208,875.76
Step by Step Solution
- Step 1: Write the proportion equation
9,860,121.81 : 14,857,485.30 = 8,102,380.70 : x - Step 2: Convert to fraction form
9,860,121.81/14,857,485.30 = 8,102,380.70/x - Step 3: Cross multiply
9,860,121.81x = 14,857,485.30 × 8,102,380.70 - Step 4: Simplify right side
9,860,121.81x = 120,381,002,182,397.42 - Step 5: Solve for x
x = 120,381,002,182,397.42/9,860,121.81 - Step 6: Final answer
x = 12,208,875.76
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.