Finding the Fourth Proportional to 38,318,385.40, 57,502,963.81 and 21,058,639.49
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Solution
The fourth proportional to 38,318,385.40, 57,502,963.81 and 21,058,639.49 is: 31,601,910.46
Step by Step Solution
- Step 1: Write the proportion equation
38,318,385.40 : 57,502,963.81 = 21,058,639.49 : x - Step 2: Convert to fraction form
38,318,385.40/57,502,963.81 = 21,058,639.49/x - Step 3: Cross multiply
38,318,385.40x = 57,502,963.81 × 21,058,639.49 - Step 4: Simplify right side
38,318,385.40x = 1,210,934,184,193,792 - Step 5: Solve for x
x = 1,210,934,184,193,792/38,318,385.40 - Step 6: Final answer
x = 31,601,910.46
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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.