Finding the Fourth Proportional to 8,791,967.80, 13,187,951.70 and 2,401,991.20
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Solution
The fourth proportional to 8,791,967.80, 13,187,951.70 and 2,401,991.20 is: 3,602,986.80
Step by Step Solution
- Step 1: Write the proportion equation
8,791,967.80 : 13,187,951.70 = 2,401,991.20 : x - Step 2: Convert to fraction form
8,791,967.80/13,187,951.70 = 2,401,991.20/x - Step 3: Cross multiply
8,791,967.80x = 13,187,951.70 × 2,401,991.20 - Step 4: Simplify right side
8,791,967.80x = 31,677,343,929,425.04 - Step 5: Solve for x
x = 31,677,343,929,425.04/8,791,967.80 - Step 6: Final answer
x = 3,602,986.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.