Finding the Fourth Proportional to 70,940,414.34, 97,898,475.98 and 39,578,198.75
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Solution
The fourth proportional to 70,940,414.34, 97,898,475.98 and 39,578,198.75 is: 54,618,307.14
Step by Step Solution
- Step 1: Write the proportion equation
70,940,414.34 : 97,898,475.98 = 39,578,198.75 : x - Step 2: Convert to fraction form
70,940,414.34/97,898,475.98 = 39,578,198.75/x - Step 3: Cross multiply
70,940,414.34x = 97,898,475.98 × 39,578,198.75 - Step 4: Simplify right side
70,940,414.34x = 3,874,645,338,971,157 - Step 5: Solve for x
x = 3,874,645,338,971,157/70,940,414.34 - Step 6: Final answer
x = 54,618,307.14
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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.