Finding the Fourth Proportional to 1,253,117,449.28, 1,727,113,116.96 and 917,877,750.08
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Solution
The fourth proportional to 1,253,117,449.28, 1,727,113,116.96 and 917,877,750.08 is: 1,265,067,933.45
Step by Step Solution
- Step 1: Write the proportion equation
1,253,117,449.28 : 1,727,113,116.96 = 917,877,750.08 : x - Step 2: Convert to fraction form
1,253,117,449.28/1,727,113,116.96 = 917,877,750.08/x - Step 3: Cross multiply
1,253,117,449.28x = 1,727,113,116.96 × 917,877,750.08 - Step 4: Simplify right side
1,253,117,449.28x = 1,585,278,701,928,900,864 - Step 5: Solve for x
x = 1,585,278,701,928,900,864/1,253,117,449.28 - Step 6: Final answer
x = 1,265,067,933.45
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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.