Finding the Fourth Proportional to 1,317,750,507.74, 1,816,841,106.09 and 964,713,589.80
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Solution
The fourth proportional to 1,317,750,507.74, 1,816,841,106.09 and 964,713,589.80 is: 1,330,093,439.74
Step by Step Solution
- Step 1: Write the proportion equation
1,317,750,507.74 : 1,816,841,106.09 = 964,713,589.80 : x - Step 2: Convert to fraction form
1,317,750,507.74/1,816,841,106.09 = 964,713,589.80/x - Step 3: Cross multiply
1,317,750,507.74x = 1,816,841,106.09 × 964,713,589.80 - Step 4: Simplify right side
1,317,750,507.74x = 1,752,731,305,552,286,464 - Step 5: Solve for x
x = 1,752,731,305,552,286,464/1,317,750,507.74 - Step 6: Final answer
x = 1,330,093,439.74
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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.