Finding the Fourth Proportional to 3,868,318,460.29, 5,338,297,553.06 and 2,197,659,275.05
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Solution
The fourth proportional to 3,868,318,460.29, 5,338,297,553.06 and 2,197,659,275.05 is: 3,032,780,069.92
Step by Step Solution
- Step 1: Write the proportion equation
3,868,318,460.29 : 5,338,297,553.06 = 2,197,659,275.05 : x - Step 2: Convert to fraction form
3,868,318,460.29/5,338,297,553.06 = 2,197,659,275.05/x - Step 3: Cross multiply
3,868,318,460.29x = 5,338,297,553.06 × 2,197,659,275.05 - Step 4: Simplify right side
3,868,318,460.29x = 11,731,759,130,459,029,504 - Step 5: Solve for x
x = 11,731,759,130,459,029,504/3,868,318,460.29 - Step 6: Final answer
x = 3,032,780,069.92
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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.