Finding the Fourth Proportional to 115,684,109.38, 159,644,053.62 and 66,125,547.21
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Solution
The fourth proportional to 115,684,109.38, 159,644,053.62 and 66,125,547.21 is: 91,253,245.24
Step by Step Solution
- Step 1: Write the proportion equation
115,684,109.38 : 159,644,053.62 = 66,125,547.21 : x - Step 2: Convert to fraction form
115,684,109.38/159,644,053.62 = 66,125,547.21/x - Step 3: Cross multiply
115,684,109.38x = 159,644,053.62 × 66,125,547.21 - Step 4: Simplify right side
115,684,109.38x = 10,556,550,403,510,354 - Step 5: Solve for x
x = 10,556,550,403,510,354/115,684,109.38 - Step 6: Final answer
x = 91,253,245.24
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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.