Finding the Fourth Proportional to 1,190,580,992.97, 1,643,093,802.57 and 714,289,286.28
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Solution
The fourth proportional to 1,190,580,992.97, 1,643,093,802.57 and 714,289,286.28 is: 985,774,429.84
Step by Step Solution
- Step 1: Write the proportion equation
1,190,580,992.97 : 1,643,093,802.57 = 714,289,286.28 : x - Step 2: Convert to fraction form
1,190,580,992.97/1,643,093,802.57 = 714,289,286.28/x - Step 3: Cross multiply
1,190,580,992.97x = 1,643,093,802.57 × 714,289,286.28 - Step 4: Simplify right side
1,190,580,992.97x = 1,173,644,299,528,816,384 - Step 5: Solve for x
x = 1,173,644,299,528,816,384/1,190,580,992.97 - Step 6: Final answer
x = 985,774,429.84
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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.