Finding the Fourth Proportional to 98,458,106.74, 135,959,338.38 and 61,351,715.14
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Solution
The fourth proportional to 98,458,106.74, 135,959,338.38 and 61,351,715.14 is: 84,719,672.92
Step by Step Solution
- Step 1: Write the proportion equation
98,458,106.74 : 135,959,338.38 = 61,351,715.14 : x - Step 2: Convert to fraction form
98,458,106.74/135,959,338.38 = 61,351,715.14/x - Step 3: Cross multiply
98,458,106.74x = 135,959,338.38 × 61,351,715.14 - Step 4: Simplify right side
98,458,106.74x = 8,341,338,598,912,629 - Step 5: Solve for x
x = 8,341,338,598,912,629/98,458,106.74 - Step 6: Final answer
x = 84,719,672.92
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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.