Finding the Fourth Proportional to 1,963,999,309.24, 2,946,551,662.50 and 858,701,231.56
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Solution
The fourth proportional to 1,963,999,309.24, 2,946,551,662.50 and 858,701,231.56 is: 1,288,293,498.65
Step by Step Solution
- Step 1: Write the proportion equation
1,963,999,309.24 : 2,946,551,662.50 = 858,701,231.56 : x - Step 2: Convert to fraction form
1,963,999,309.24/2,946,551,662.50 = 858,701,231.56/x - Step 3: Cross multiply
1,963,999,309.24x = 2,946,551,662.50 × 858,701,231.56 - Step 4: Simplify right side
1,963,999,309.24x = 2,530,207,541,443,915,264 - Step 5: Solve for x
x = 2,530,207,541,443,915,264/1,963,999,309.24 - Step 6: Final answer
x = 1,288,293,498.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.