Finding the Fourth Proportional to 5,310,454,728.79, 7,328,450,932.62 and 2,931,612,213.73
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Solution
The fourth proportional to 5,310,454,728.79, 7,328,450,932.62 and 2,931,612,213.73 is: 4,045,637,776.61
Step by Step Solution
- Step 1: Write the proportion equation
5,310,454,728.79 : 7,328,450,932.62 = 2,931,612,213.73 : x - Step 2: Convert to fraction form
5,310,454,728.79/7,328,450,932.62 = 2,931,612,213.73/x - Step 3: Cross multiply
5,310,454,728.79x = 7,328,450,932.62 × 2,931,612,213.73 - Step 4: Simplify right side
5,310,454,728.79x = 21,484,176,261,789,949,952 - Step 5: Solve for x
x = 21,484,176,261,789,949,952/5,310,454,728.79 - Step 6: Final answer
x = 4,045,637,776.61
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1.5x scale
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.