Finding the Fourth Proportional to 1,992,765,640.36, 2,750,016,478.66 and 1,076,184,645.78
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Solution
The fourth proportional to 1,992,765,640.36, 2,750,016,478.66 and 1,076,184,645.78 is: 1,485,134,754.45
Step by Step Solution
- Step 1: Write the proportion equation
1,992,765,640.36 : 2,750,016,478.66 = 1,076,184,645.78 : x - Step 2: Convert to fraction form
1,992,765,640.36/2,750,016,478.66 = 1,076,184,645.78/x - Step 3: Cross multiply
1,992,765,640.36x = 2,750,016,478.66 × 1,076,184,645.78 - Step 4: Simplify right side
1,992,765,640.36x = 2,959,525,509,975,874,560 - Step 5: Solve for x
x = 2,959,525,509,975,874,560/1,992,765,640.36 - Step 6: Final answer
x = 1,485,134,754.45
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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.