Finding the Fourth Proportional to 129,682,305,151.92, 178,963,408,531.08 and 74,719,101,575.88
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Solution
The fourth proportional to 129,682,305,151.92, 178,963,408,531.08 and 74,719,101,575.88 is: 103,113,413,080.79
Step by Step Solution
- Step 1: Write the proportion equation
129,682,305,151.92 : 178,963,408,531.08 = 74,719,101,575.88 : x - Step 2: Convert to fraction form
129,682,305,151.92/178,963,408,531.08 = 74,719,101,575.88/x - Step 3: Cross multiply
129,682,305,151.92x = 178,963,408,531.08 × 74,719,101,575.88 - Step 4: Simplify right side
129,682,305,151.92x = 13,371,985,100,399,475,425,280 - Step 5: Solve for x
x = 13,371,985,100,399,475,425,280/129,682,305,151.92 - Step 6: Final answer
x = 103,113,413,080.79
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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.