Finding the Fourth Proportional to 38,368,569.40, 57,503,865.30 and 15,623,769.40
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Solution
The fourth proportional to 38,368,569.40, 57,503,865.30 and 15,623,769.40 is: 23,415,705.75
Step by Step Solution
- Step 1: Write the proportion equation
38,368,569.40 : 57,503,865.30 = 15,623,769.40 : x - Step 2: Convert to fraction form
38,368,569.40/57,503,865.30 = 15,623,769.40/x - Step 3: Cross multiply
38,368,569.40x = 57,503,865.30 × 15,623,769.40 - Step 4: Simplify right side
38,368,569.40x = 898,427,131,055,861.75 - Step 5: Solve for x
x = 898,427,131,055,861.75/38,368,569.40 - Step 6: Final answer
x = 23,415,705.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.