Finding the Fourth Proportional to 1,824,056,081.05, 2,517,201,101.05 and 988,681,217.53
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Solution
The fourth proportional to 1,824,056,081.05, 2,517,201,101.05 and 988,681,217.53 is: 1,364,382,090.67
Step by Step Solution
- Step 1: Write the proportion equation
1,824,056,081.05 : 2,517,201,101.05 = 988,681,217.53 : x - Step 2: Convert to fraction form
1,824,056,081.05/2,517,201,101.05 = 988,681,217.53/x - Step 3: Cross multiply
1,824,056,081.05x = 2,517,201,101.05 × 988,681,217.53 - Step 4: Simplify right side
1,824,056,081.05x = 2,488,709,449,362,573,312 - Step 5: Solve for x
x = 2,488,709,449,362,573,312/1,824,056,081.05 - Step 6: Final answer
x = 1,364,382,090.67
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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.