Finding the Fourth Proportional to 212,968,694,336.70, 319,472,679,721.10 and 69,548,474,243.58
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Solution
The fourth proportional to 212,968,694,336.70, 319,472,679,721.10 and 69,548,474,243.58 is: 104,329,124,551.91
Step by Step Solution
- Step 1: Write the proportion equation
212,968,694,336.70 : 319,472,679,721.10 = 69,548,474,243.58 : x - Step 2: Convert to fraction form
212,968,694,336.70/319,472,679,721.10 = 69,548,474,243.58/x - Step 3: Cross multiply
212,968,694,336.70x = 319,472,679,721.10 × 69,548,474,243.58 - Step 4: Simplify right side
212,968,694,336.70x = 22,218,837,437,110,403,727,360 - Step 5: Solve for x
x = 22,218,837,437,110,403,727,360/212,968,694,336.70 - Step 6: Final answer
x = 104,329,124,551.91
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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.