Finding the Fourth Proportional to 982,988,439.48, 1,356,528,669.97 and 536,957,990.73
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Solution
The fourth proportional to 982,988,439.48, 1,356,528,669.97 and 536,957,990.73 is: 741,004,552.79
Step by Step Solution
- Step 1: Write the proportion equation
982,988,439.48 : 1,356,528,669.97 = 536,957,990.73 : x - Step 2: Convert to fraction form
982,988,439.48/1,356,528,669.97 = 536,957,990.73/x - Step 3: Cross multiply
982,988,439.48x = 1,356,528,669.97 × 536,957,990.73 - Step 4: Simplify right side
982,988,439.48x = 728,398,908,987,947,904 - Step 5: Solve for x
x = 728,398,908,987,947,904/982,988,439.48 - Step 6: Final answer
x = 741,004,552.79
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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.