Finding the Fourth Proportional to 5,517,804,984.84, 7,624,531,347.48 and 3,929,138,842.59
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Solution
The fourth proportional to 5,517,804,984.84, 7,624,531,347.48 and 3,929,138,842.59 is: 5,429,304,289.70
Step by Step Solution
- Step 1: Write the proportion equation
5,517,804,984.84 : 7,624,531,347.48 = 3,929,138,842.59 : x - Step 2: Convert to fraction form
5,517,804,984.84/7,624,531,347.48 = 3,929,138,842.59/x - Step 3: Cross multiply
5,517,804,984.84x = 7,624,531,347.48 × 3,929,138,842.59 - Step 4: Simplify right side
5,517,804,984.84x = 29,957,842,273,928,740,864 - Step 5: Solve for x
x = 29,957,842,273,928,740,864/5,517,804,984.84 - Step 6: Final answer
x = 5,429,304,289.70
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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.