Finding the Fourth Proportional to 5,376,871.70, 8,065,307.55 and 4,879,207.70
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Solution
The fourth proportional to 5,376,871.70, 8,065,307.55 and 4,879,207.70 is: 7,318,811.55
Step by Step Solution
- Step 1: Write the proportion equation
5,376,871.70 : 8,065,307.55 = 4,879,207.70 : x - Step 2: Convert to fraction form
5,376,871.70/8,065,307.55 = 4,879,207.70/x - Step 3: Cross multiply
5,376,871.70x = 8,065,307.55 × 4,879,207.70 - Step 4: Simplify right side
5,376,871.70x = 39,352,310,700,828.13 - Step 5: Solve for x
x = 39,352,310,700,828.13/5,376,871.70 - Step 6: Final answer
x = 7,318,811.55
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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.