Finding the Fourth Proportional to 911,839,007.08, 1,258,338,905.92 and 494,151,292.36
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Solution
The fourth proportional to 911,839,007.08, 1,258,338,905.92 and 494,151,292.36 is: 681,929,366.65
Step by Step Solution
- Step 1: Write the proportion equation
911,839,007.08 : 1,258,338,905.92 = 494,151,292.36 : x - Step 2: Convert to fraction form
911,839,007.08/1,258,338,905.92 = 494,151,292.36/x - Step 3: Cross multiply
911,839,007.08x = 1,258,338,905.92 × 494,151,292.36 - Step 4: Simplify right side
911,839,007.08x = 621,809,796,587,236,480 - Step 5: Solve for x
x = 621,809,796,587,236,480/911,839,007.08 - Step 6: Final answer
x = 681,929,366.65
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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.