Finding the Fourth Proportional to 10,771,208.70, 16,156,813.05 and 7,369,986.30
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Solution
The fourth proportional to 10,771,208.70, 16,156,813.05 and 7,369,986.30 is: 11,054,979.45
Step by Step Solution
- Step 1: Write the proportion equation
10,771,208.70 : 16,156,813.05 = 7,369,986.30 : x - Step 2: Convert to fraction form
10,771,208.70/16,156,813.05 = 7,369,986.30/x - Step 3: Cross multiply
10,771,208.70x = 16,156,813.05 × 7,369,986.30 - Step 4: Simplify right side
10,771,208.70x = 119,075,490,830,161.22 - Step 5: Solve for x
x = 119,075,490,830,161.22/10,771,208.70 - Step 6: Final answer
x = 11,054,979.45
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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.