Finding the Fourth Proportional to 38,523,979.62, 53,163,079.38 and 21,119,951.34
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Solution
The fourth proportional to 38,523,979.62, 53,163,079.38 and 21,119,951.34 is: 29,145,526.00
Step by Step Solution
- Step 1: Write the proportion equation
38,523,979.62 : 53,163,079.38 = 21,119,951.34 : x - Step 2: Convert to fraction form
38,523,979.62/53,163,079.38 = 21,119,951.34/x - Step 3: Cross multiply
38,523,979.62x = 53,163,079.38 × 21,119,951.34 - Step 4: Simplify right side
38,523,979.62x = 1,122,801,649,590,157.38 - Step 5: Solve for x
x = 1,122,801,649,590,157.38/38,523,979.62 - Step 6: Final answer
x = 29,145,526.00
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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.