Finding the Fourth Proportional to 34,198,478.49, 47,192,986.13 and 19,513,877.97
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Solution
The fourth proportional to 34,198,478.49, 47,192,986.13 and 19,513,877.97 is: 26,928,629.96
Step by Step Solution
- Step 1: Write the proportion equation
34,198,478.49 : 47,192,986.13 = 19,513,877.97 : x - Step 2: Convert to fraction form
34,198,478.49/47,192,986.13 = 19,513,877.97/x - Step 3: Cross multiply
34,198,478.49x = 47,192,986.13 × 19,513,877.97 - Step 4: Simplify right side
34,198,478.49x = 920,918,172,283,153.12 - Step 5: Solve for x
x = 920,918,172,283,153.12/34,198,478.49 - Step 6: Final answer
x = 26,928,629.96
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1.5x scale
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.