Finding the Fourth Proportional to 28,994,557,148,643, 40,064,828,404,260 and 20,646,550,778,278
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Solution
The fourth proportional to 28,994,557,148,643, 40,064,828,404,260 and 20,646,550,778,278 is: 28,529,510,205,340.85
Step by Step Solution
- Step 1: Write the proportion equation
28,994,557,148,643 : 40,064,828,404,260 = 20,646,550,778,278 : x - Step 2: Convert to fraction form
28,994,557,148,643/40,064,828,404,260 = 20,646,550,778,278/x - Step 3: Cross multiply
28,994,557,148,643x = 40,064,828,404,260 × 20,646,550,778,278 - Step 4: Simplify right side
28,994,557,148,643x = 827,200,514,071,548,850,350,325,760 - Step 5: Solve for x
x = 827,200,514,071,548,850,350,325,760/28,994,557,148,643 - Step 6: Final answer
x = 28,529,510,205,340.85
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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.