Finding the Fourth Proportional to 13,324,543.84, 18,387,997.16 and 7,818,012.36
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Solution
The fourth proportional to 13,324,543.84, 18,387,997.16 and 7,818,012.36 is: 10,788,931.37
Step by Step Solution
- Step 1: Write the proportion equation
13,324,543.84 : 18,387,997.16 = 7,818,012.36 : x - Step 2: Convert to fraction form
13,324,543.84/18,387,997.16 = 7,818,012.36/x - Step 3: Cross multiply
13,324,543.84x = 18,387,997.16 × 7,818,012.36 - Step 4: Simplify right side
13,324,543.84x = 143,757,589,072,524.91 - Step 5: Solve for x
x = 143,757,589,072,524.91/13,324,543.84 - Step 6: Final answer
x = 10,788,931.37
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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.