Finding the Fourth Proportional to 33,438,128.70, 46,125,020.16 and 21,028,538.46
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Solution
The fourth proportional to 33,438,128.70, 46,125,020.16 and 21,028,538.46 is: 29,007,058.65
Step by Step Solution
- Step 1: Write the proportion equation
33,438,128.70 : 46,125,020.16 = 21,028,538.46 : x - Step 2: Convert to fraction form
33,438,128.70/46,125,020.16 = 21,028,538.46/x - Step 3: Cross multiply
33,438,128.70x = 46,125,020.16 × 21,028,538.46 - Step 4: Simplify right side
33,438,128.70x = 969,941,760,402,835.38 - Step 5: Solve for x
x = 969,941,760,402,835.38/33,438,128.70 - Step 6: Final answer
x = 29,007,058.65
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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.