Finding the Fourth Proportional to 2,498,369,679.28, 3,447,787,863 and 1,369,330,409.20
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Solution
The fourth proportional to 2,498,369,679.28, 3,447,787,863 and 1,369,330,409.20 is: 1,889,696,630.74
Step by Step Solution
- Step 1: Write the proportion equation
2,498,369,679.28 : 3,447,787,863 = 1,369,330,409.20 : x - Step 2: Convert to fraction form
2,498,369,679.28/3,447,787,863 = 1,369,330,409.20/x - Step 3: Cross multiply
2,498,369,679.28x = 3,447,787,863 × 1,369,330,409.20 - Step 4: Simplify right side
2,498,369,679.28x = 4,721,160,765,276,583,936 - Step 5: Solve for x
x = 4,721,160,765,276,583,936/2,498,369,679.28 - Step 6: Final answer
x = 1,889,696,630.74
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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.