Finding the Fourth Proportional to 38,676,319.44, 53,374,330.74 and 21,273,121.47
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Solution
The fourth proportional to 38,676,319.44, 53,374,330.74 and 21,273,121.47 is: 29,357,463.11
Step by Step Solution
- Step 1: Write the proportion equation
38,676,319.44 : 53,374,330.74 = 21,273,121.47 : x - Step 2: Convert to fraction form
38,676,319.44/53,374,330.74 = 21,273,121.47/x - Step 3: Cross multiply
38,676,319.44x = 53,374,330.74 × 21,273,121.47 - Step 4: Simplify right side
38,676,319.44x = 1,135,438,621,211,975 - Step 5: Solve for x
x = 1,135,438,621,211,975/38,676,319.44 - Step 6: Final answer
x = 29,357,463.11
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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.