Finding the Fourth Proportional to 1,617,068,883.98, 2,231,561,784.52 and 874,512,946.74
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Solution
The fourth proportional to 1,617,068,883.98, 2,231,561,784.52 and 874,512,946.74 is: 1,206,831,503.19
Step by Step Solution
- Step 1: Write the proportion equation
1,617,068,883.98 : 2,231,561,784.52 = 874,512,946.74 : x - Step 2: Convert to fraction form
1,617,068,883.98/2,231,561,784.52 = 874,512,946.74/x - Step 3: Cross multiply
1,617,068,883.98x = 2,231,561,784.52 × 874,512,946.74 - Step 4: Simplify right side
1,617,068,883.98x = 1,951,529,672,012,958,208 - Step 5: Solve for x
x = 1,951,529,672,012,958,208/1,617,068,883.98 - Step 6: Final answer
x = 1,206,831,503.19
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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.