Finding the Fourth Proportional to 590,747,751.25, 815,278,368.81 and 336,439,860.79
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Solution
The fourth proportional to 590,747,751.25, 815,278,368.81 and 336,439,860.79 is: 464,313,474.45
Step by Step Solution
- Step 1: Write the proportion equation
590,747,751.25 : 815,278,368.81 = 336,439,860.79 : x - Step 2: Convert to fraction form
590,747,751.25/815,278,368.81 = 336,439,860.79/x - Step 3: Cross multiply
590,747,751.25x = 815,278,368.81 × 336,439,860.79 - Step 4: Simplify right side
590,747,751.25x = 274,292,140,906,411,616 - Step 5: Solve for x
x = 274,292,140,906,411,616/590,747,751.25 - Step 6: Final answer
x = 464,313,474.45
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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.