Finding the Fourth Proportional to 7,681,511.88, 11,522,855.88 and 2,289,750.12
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Solution
The fourth proportional to 7,681,511.88, 11,522,855.88 and 2,289,750.12 is: 3,434,800.47
Step by Step Solution
- Step 1: Write the proportion equation
7,681,511.88 : 11,522,855.88 = 2,289,750.12 : x - Step 2: Convert to fraction form
7,681,511.88/11,522,855.88 = 2,289,750.12/x - Step 3: Cross multiply
7,681,511.88x = 11,522,855.88 × 2,289,750.12 - Step 4: Simplify right side
7,681,511.88x = 26,384,460,633,972.71 - Step 5: Solve for x
x = 26,384,460,633,972.71/7,681,511.88 - Step 6: Final answer
x = 3,434,800.47
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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.