Finding the Fourth Proportional to 115,684,128.60, 159,644,080.20 and 66,125,566.44
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Solution
The fourth proportional to 115,684,128.60, 159,644,080.20 and 66,125,566.44 is: 91,253,271.82
Step by Step Solution
- Step 1: Write the proportion equation
115,684,128.60 : 159,644,080.20 = 66,125,566.44 : x - Step 2: Convert to fraction form
115,684,128.60/159,644,080.20 = 66,125,566.44/x - Step 3: Cross multiply
115,684,128.60x = 159,644,080.20 × 66,125,566.44 - Step 4: Simplify right side
115,684,128.60x = 10,556,555,232,017,788 - Step 5: Solve for x
x = 10,556,555,232,017,788/115,684,128.60 - Step 6: Final answer
x = 91,253,271.82
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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.