Finding the Fourth Proportional to 6,872,958,232.32, 9,484,376,542.74 and 4,015,365,431.70
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Solution
The fourth proportional to 6,872,958,232.32, 9,484,376,542.74 and 4,015,365,431.70 is: 5,541,025,628.80
Step by Step Solution
- Step 1: Write the proportion equation
6,872,958,232.32 : 9,484,376,542.74 = 4,015,365,431.70 : x - Step 2: Convert to fraction form
6,872,958,232.32/9,484,376,542.74 = 4,015,365,431.70/x - Step 3: Cross multiply
6,872,958,232.32x = 9,484,376,542.74 × 4,015,365,431.70 - Step 4: Simplify right side
6,872,958,232.32x = 38,083,237,710,944,550,912 - Step 5: Solve for x
x = 38,083,237,710,944,550,912/6,872,958,232.32 - Step 6: Final answer
x = 5,541,025,628.80
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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.