Finding the Fourth Proportional to 12,069,545.86, 18,122,035.11 and 7,539,896.26
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Solution
The fourth proportional to 12,069,545.86, 18,122,035.11 and 7,539,896.26 is: 11,320,911.85
Step by Step Solution
- Step 1: Write the proportion equation
12,069,545.86 : 18,122,035.11 = 7,539,896.26 : x - Step 2: Convert to fraction form
12,069,545.86/18,122,035.11 = 7,539,896.26/x - Step 3: Cross multiply
12,069,545.86x = 18,122,035.11 × 7,539,896.26 - Step 4: Simplify right side
12,069,545.86x = 136,638,264,749,477.69 - Step 5: Solve for x
x = 136,638,264,749,477.69/12,069,545.86 - Step 6: Final answer
x = 11,320,911.85
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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.