Finding the Fourth Proportional to 1,584,378,646.26, 2,186,332,812.88 and 879,475,107.03
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Solution
The fourth proportional to 1,584,378,646.26, 2,186,332,812.88 and 879,475,107.03 is: 1,213,614,743.64
Step by Step Solution
- Step 1: Write the proportion equation
1,584,378,646.26 : 2,186,332,812.88 = 879,475,107.03 : x - Step 2: Convert to fraction form
1,584,378,646.26/2,186,332,812.88 = 879,475,107.03/x - Step 3: Cross multiply
1,584,378,646.26x = 2,186,332,812.88 × 879,475,107.03 - Step 4: Simplify right side
1,584,378,646.26x = 1,922,825,284,610,839,040 - Step 5: Solve for x
x = 1,922,825,284,610,839,040/1,584,378,646.26 - Step 6: Final answer
x = 1,213,614,743.64
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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.