Finding the Fourth Proportional to 714,713,558.64, 986,328,633.87 and 397,187,187.09
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Solution
The fourth proportional to 714,713,558.64, 986,328,633.87 and 397,187,187.09 is: 548,131,612.86
Step by Step Solution
- Step 1: Write the proportion equation
714,713,558.64 : 986,328,633.87 = 397,187,187.09 : x - Step 2: Convert to fraction form
714,713,558.64/986,328,633.87 = 397,187,187.09/x - Step 3: Cross multiply
714,713,558.64x = 986,328,633.87 × 397,187,187.09 - Step 4: Simplify right side
714,713,558.64x = 391,757,095,633,147,776 - Step 5: Solve for x
x = 391,757,095,633,147,776/714,713,558.64 - Step 6: Final answer
x = 548,131,612.86
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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.