Finding the Fourth Proportional to 193,866,215.63, 267,498,787.84 and 115,557,055.67
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Solution
The fourth proportional to 193,866,215.63, 267,498,787.84 and 115,557,055.67 is: 159,446,926.94
Step by Step Solution
- Step 1: Write the proportion equation
193,866,215.63 : 267,498,787.84 = 115,557,055.67 : x - Step 2: Convert to fraction form
193,866,215.63/267,498,787.84 = 115,557,055.67/x - Step 3: Cross multiply
193,866,215.63x = 267,498,787.84 × 115,557,055.67 - Step 4: Simplify right side
193,866,215.63x = 30,911,372,318,464,252 - Step 5: Solve for x
x = 30,911,372,318,464,252/193,866,215.63 - Step 6: Final answer
x = 159,446,926.94
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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.