Finding the Fourth Proportional to 13,316,717.88, 18,377,133.66 and 7,515,744.12
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Solution
The fourth proportional to 13,316,717.88, 18,377,133.66 and 7,515,744.12 is: 10,371,762.43
Step by Step Solution
- Step 1: Write the proportion equation
13,316,717.88 : 18,377,133.66 = 7,515,744.12 : x - Step 2: Convert to fraction form
13,316,717.88/18,377,133.66 = 7,515,744.12/x - Step 3: Cross multiply
13,316,717.88x = 18,377,133.66 × 7,515,744.12 - Step 4: Simplify right side
13,316,717.88x = 138,117,834,247,599.08 - Step 5: Solve for x
x = 138,117,834,247,599.08/13,316,717.88 - Step 6: Final answer
x = 10,371,762.43
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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.