Finding the Fourth Proportional to 38,502,320.96, 53,135,809.80 and 21,751,250.70
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Solution
The fourth proportional to 38,502,320.96, 53,135,809.80 and 21,751,250.70 is: 30,018,198.67
Step by Step Solution
- Step 1: Write the proportion equation
38,502,320.96 : 53,135,809.80 = 21,751,250.70 : x - Step 2: Convert to fraction form
38,502,320.96/53,135,809.80 = 21,751,250.70/x - Step 3: Cross multiply
38,502,320.96x = 53,135,809.80 × 21,751,250.70 - Step 4: Simplify right side
38,502,320.96x = 1,155,770,320,048,471 - Step 5: Solve for x
x = 1,155,770,320,048,471/38,502,320.96 - Step 6: Final answer
x = 30,018,198.67
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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.