Finding the Fourth Proportional to 8,961,551,628.51, 12,366,959,561.99 and 4,947,227,419.58
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Solution
The fourth proportional to 8,961,551,628.51, 12,366,959,561.99 and 4,947,227,419.58 is: 6,827,183,949.62
Step by Step Solution
- Step 1: Write the proportion equation
8,961,551,628.51 : 12,366,959,561.99 = 4,947,227,419.58 : x - Step 2: Convert to fraction form
8,961,551,628.51/12,366,959,561.99 = 4,947,227,419.58/x - Step 3: Cross multiply
8,961,551,628.51x = 12,366,959,561.99 × 4,947,227,419.58 - Step 4: Simplify right side
8,961,551,628.51x = 61,182,161,441,827,422,208 - Step 5: Solve for x
x = 61,182,161,441,827,422,208/8,961,551,628.51 - Step 6: Final answer
x = 6,827,183,949.62
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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.