Finding the Fourth Proportional to 7,165,206.20, 10,747,809.30 and 4,773,721.70
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Solution
The fourth proportional to 7,165,206.20, 10,747,809.30 and 4,773,721.70 is: 7,160,582.55
Step by Step Solution
- Step 1: Write the proportion equation
7,165,206.20 : 10,747,809.30 = 4,773,721.70 : x - Step 2: Convert to fraction form
7,165,206.20/10,747,809.30 = 4,773,721.70/x - Step 3: Cross multiply
7,165,206.20x = 10,747,809.30 × 4,773,721.70 - Step 4: Simplify right side
7,165,206.20x = 51,307,050,482,871.81 - Step 5: Solve for x
x = 51,307,050,482,871.81/7,165,206.20 - Step 6: Final answer
x = 7,160,582.55
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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.