Finding the Fourth Proportional to 7,403,188.61, 10,218,968.67 and 5,087,745.95
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Solution
The fourth proportional to 7,403,188.61, 10,218,968.67 and 5,087,745.95 is: 7,022,854.50
Step by Step Solution
- Step 1: Write the proportion equation
7,403,188.61 : 10,218,968.67 = 5,087,745.95 : x - Step 2: Convert to fraction form
7,403,188.61/10,218,968.67 = 5,087,745.95/x - Step 3: Cross multiply
7,403,188.61x = 10,218,968.67 × 5,087,745.95 - Step 4: Simplify right side
7,403,188.61x = 51,991,516,412,874.55 - Step 5: Solve for x
x = 51,991,516,412,874.55/7,403,188.61 - Step 6: Final answer
x = 7,022,854.50
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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.