Finding the Fourth Proportional to 27,804,764.07, 38,372,848.29 and 15,418,742.72
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Solution
The fourth proportional to 27,804,764.07, 38,372,848.29 and 15,418,742.72 is: 21,279,125.89
Step by Step Solution
- Step 1: Write the proportion equation
27,804,764.07 : 38,372,848.29 = 15,418,742.72 : x - Step 2: Convert to fraction form
27,804,764.07/38,372,848.29 = 15,418,742.72/x - Step 3: Cross multiply
27,804,764.07x = 38,372,848.29 × 15,418,742.72 - Step 4: Simplify right side
27,804,764.07x = 591,661,075,025,237.75 - Step 5: Solve for x
x = 591,661,075,025,237.75/27,804,764.07 - Step 6: Final answer
x = 21,279,125.89
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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.