Finding the Fourth Proportional to 1,253,117,442.28, 1,727,113,107.30 and 917,877,743.08
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Solution
The fourth proportional to 1,253,117,442.28, 1,727,113,107.30 and 917,877,743.08 is: 1,265,067,923.79
Step by Step Solution
- Step 1: Write the proportion equation
1,253,117,442.28 : 1,727,113,107.30 = 917,877,743.08 : x - Step 2: Convert to fraction form
1,253,117,442.28/1,727,113,107.30 = 917,877,743.08/x - Step 3: Cross multiply
1,253,117,442.28x = 1,727,113,107.30 × 917,877,743.08 - Step 4: Simplify right side
1,253,117,442.28x = 1,585,278,680,972,409,856 - Step 5: Solve for x
x = 1,585,278,680,972,409,856/1,253,117,442.28 - Step 6: Final answer
x = 1,265,067,923.79
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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.