Finding the Fourth Proportional to 1,661,713,268.16, 2,293,021,458.72 and 918,972,454.08
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Solution
The fourth proportional to 1,661,713,268.16, 2,293,021,458.72 and 918,972,454.08 is: 1,268,102,985.97
Step by Step Solution
- Step 1: Write the proportion equation
1,661,713,268.16 : 2,293,021,458.72 = 918,972,454.08 : x - Step 2: Convert to fraction form
1,661,713,268.16/2,293,021,458.72 = 918,972,454.08/x - Step 3: Cross multiply
1,661,713,268.16x = 2,293,021,458.72 × 918,972,454.08 - Step 4: Simplify right side
1,661,713,268.16x = 2,107,223,557,178,019,840 - Step 5: Solve for x
x = 2,107,223,557,178,019,840/1,661,713,268.16 - Step 6: Final answer
x = 1,268,102,985.97
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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.