Finding the Fourth Proportional to 7,813,218.85, 11,723,196.25 and 4,218,271.99
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Solution
The fourth proportional to 7,813,218.85, 11,723,196.25 and 4,218,271.99 is: 6,329,226.32
Step by Step Solution
- Step 1: Write the proportion equation
7,813,218.85 : 11,723,196.25 = 4,218,271.99 : x - Step 2: Convert to fraction form
7,813,218.85/11,723,196.25 = 4,218,271.99/x - Step 3: Cross multiply
7,813,218.85x = 11,723,196.25 × 4,218,271.99 - Step 4: Simplify right side
7,813,218.85x = 49,451,630,374,648.04 - Step 5: Solve for x
x = 49,451,630,374,648.04/7,813,218.85 - Step 6: Final answer
x = 6,329,226.32
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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.