Finding the Fourth Proportional to 11,178,387.70, 16,767,581.55 and 5,509,683.70
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Solution
The fourth proportional to 11,178,387.70, 16,767,581.55 and 5,509,683.70 is: 8,264,525.55
Step by Step Solution
- Step 1: Write the proportion equation
11,178,387.70 : 16,767,581.55 = 5,509,683.70 : x - Step 2: Convert to fraction form
11,178,387.70/16,767,581.55 = 5,509,683.70/x - Step 3: Cross multiply
11,178,387.70x = 16,767,581.55 × 5,509,683.70 - Step 4: Simplify right side
11,178,387.70x = 92,384,070,754,455.75 - Step 5: Solve for x
x = 92,384,070,754,455.75/11,178,387.70 - Step 6: Final answer
x = 8,264,525.55
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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.