Finding the Fourth Proportional to 1,235,125,343.49, 1,852,792,642.71 and 394,889,221.84
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Solution
The fourth proportional to 1,235,125,343.49, 1,852,792,642.71 and 394,889,221.84 is: 592,367,283.83
Step by Step Solution
- Step 1: Write the proportion equation
1,235,125,343.49 : 1,852,792,642.71 = 394,889,221.84 : x - Step 2: Convert to fraction form
1,235,125,343.49/1,852,792,642.71 = 394,889,221.84/x - Step 3: Cross multiply
1,235,125,343.49x = 1,852,792,642.71 × 394,889,221.84 - Step 4: Simplify right side
1,235,125,343.49x = 731,647,844,909,443,328 - Step 5: Solve for x
x = 731,647,844,909,443,328/1,235,125,343.49 - Step 6: Final answer
x = 592,367,283.83
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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.