Finding the Fourth Proportional to 1,690,388,382.43, 2,332,386,647.62 and 975,911,554.81
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Solution
The fourth proportional to 1,690,388,382.43, 2,332,386,647.62 and 975,911,554.81 is: 1,346,556,272.72
Step by Step Solution
- Step 1: Write the proportion equation
1,690,388,382.43 : 2,332,386,647.62 = 975,911,554.81 : x - Step 2: Convert to fraction form
1,690,388,382.43/2,332,386,647.62 = 975,911,554.81/x - Step 3: Cross multiply
1,690,388,382.43x = 2,332,386,647.62 × 975,911,554.81 - Step 4: Simplify right side
1,690,388,382.43x = 2,276,203,079,696,917,504 - Step 5: Solve for x
x = 2,276,203,079,696,917,504/1,690,388,382.43 - Step 6: Final answer
x = 1,346,556,272.72
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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.