Finding the Fourth Proportional to 18,323,881.68, 27,479,718.96 and 7,391,247.66
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Solution
The fourth proportional to 18,323,881.68, 27,479,718.96 and 7,391,247.66 is: 11,084,409.52
Step by Step Solution
- Step 1: Write the proportion equation
18,323,881.68 : 27,479,718.96 = 7,391,247.66 : x - Step 2: Convert to fraction form
18,323,881.68/27,479,718.96 = 7,391,247.66/x - Step 3: Cross multiply
18,323,881.68x = 27,479,718.96 × 7,391,247.66 - Step 4: Simplify right side
18,323,881.68x = 203,109,408,460,557.66 - Step 5: Solve for x
x = 203,109,408,460,557.66/18,323,881.68 - Step 6: Final answer
x = 11,084,409.52
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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.