Finding the Fourth Proportional to 7,767,581.18, 10,720,311.28 and 4,711,302.14
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Solution
The fourth proportional to 7,767,581.18, 10,720,311.28 and 4,711,302.14 is: 6,502,233.36
Step by Step Solution
- Step 1: Write the proportion equation
7,767,581.18 : 10,720,311.28 = 4,711,302.14 : x - Step 2: Convert to fraction form
7,767,581.18/10,720,311.28 = 4,711,302.14/x - Step 3: Cross multiply
7,767,581.18x = 10,720,311.28 × 4,711,302.14 - Step 4: Simplify right side
7,767,581.18x = 50,506,625,474,930.13 - Step 5: Solve for x
x = 50,506,625,474,930.13/7,767,581.18 - Step 6: Final answer
x = 6,502,233.36
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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.