Finding the Fourth Proportional to 45,651,996.31, 68,435,128.54 and 15,338,659.99
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Solution
The fourth proportional to 45,651,996.31, 68,435,128.54 and 15,338,659.99 is: 22,993,587.42
Step by Step Solution
- Step 1: Write the proportion equation
45,651,996.31 : 68,435,128.54 = 15,338,659.99 : x - Step 2: Convert to fraction form
45,651,996.31/68,435,128.54 = 15,338,659.99/x - Step 3: Cross multiply
45,651,996.31x = 68,435,128.54 × 15,338,659.99 - Step 4: Simplify right side
45,651,996.31x = 1,049,703,168,047,005.25 - Step 5: Solve for x
x = 1,049,703,168,047,005.25/45,651,996.31 - Step 6: Final answer
x = 22,993,587.42
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.