Finding the Fourth Proportional to 21,652,599.79, 29,880,586.86 and 11,863,415.26
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Solution
The fourth proportional to 21,652,599.79, 29,880,586.86 and 11,863,415.26 is: 16,371,512.59
Step by Step Solution
- Step 1: Write the proportion equation
21,652,599.79 : 29,880,586.86 = 11,863,415.26 : x - Step 2: Convert to fraction form
21,652,599.79/29,880,586.86 = 11,863,415.26/x - Step 3: Cross multiply
21,652,599.79x = 29,880,586.86 × 11,863,415.26 - Step 4: Simplify right side
21,652,599.79x = 354,485,810,132,679.50 - Step 5: Solve for x
x = 354,485,810,132,679.50/21,652,599.79 - Step 6: Final answer
x = 16,371,512.59
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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.