Finding the Fourth Proportional to 84,846,698.40, 117,085,148.20 and 51,862,174.84
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Solution
The fourth proportional to 84,846,698.40, 117,085,148.20 and 51,862,174.84 is: 71,567,786.86
Step by Step Solution
- Step 1: Write the proportion equation
84,846,698.40 : 117,085,148.20 = 51,862,174.84 : x - Step 2: Convert to fraction form
84,846,698.40/117,085,148.20 = 51,862,174.84/x - Step 3: Cross multiply
84,846,698.40x = 117,085,148.20 × 51,862,174.84 - Step 4: Simplify right side
84,846,698.40x = 6,072,290,427,115,712 - Step 5: Solve for x
x = 6,072,290,427,115,712/84,846,698.40 - Step 6: Final answer
x = 71,567,786.86
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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.