Finding the Fourth Proportional to 198,806,283.68, 274,350,055.80 and 109,496,513.12
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Solution
The fourth proportional to 198,806,283.68, 274,350,055.80 and 109,496,513.12 is: 151,103,747.47
Step by Step Solution
- Step 1: Write the proportion equation
198,806,283.68 : 274,350,055.80 = 109,496,513.12 : x - Step 2: Convert to fraction form
198,806,283.68/274,350,055.80 = 109,496,513.12/x - Step 3: Cross multiply
198,806,283.68x = 274,350,055.80 × 109,496,513.12 - Step 4: Simplify right side
198,806,283.68x = 30,040,374,484,377,436 - Step 5: Solve for x
x = 30,040,374,484,377,436/198,806,283.68 - Step 6: Final answer
x = 151,103,747.47
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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.