Finding the Fourth Proportional to 1,489,228,925.13, 2,055,110,843.75 and 820,236,268.53
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Solution
The fourth proportional to 1,489,228,925.13, 2,055,110,843.75 and 820,236,268.53 is: 1,131,912,240.92
Step by Step Solution
- Step 1: Write the proportion equation
1,489,228,925.13 : 2,055,110,843.75 = 820,236,268.53 : x - Step 2: Convert to fraction form
1,489,228,925.13/2,055,110,843.75 = 820,236,268.53/x - Step 3: Cross multiply
1,489,228,925.13x = 2,055,110,843.75 × 820,236,268.53 - Step 4: Simplify right side
1,489,228,925.13x = 1,685,676,449,888,938,496 - Step 5: Solve for x
x = 1,685,676,449,888,938,496/1,489,228,925.13 - Step 6: Final answer
x = 1,131,912,240.92
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.