Finding the Fourth Proportional to 21,407,941.34, 29,542,959.02 and 11,618,385.53
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Solution
The fourth proportional to 21,407,941.34, 29,542,959.02 and 11,618,385.53 is: 16,033,372.01
Step by Step Solution
- Step 1: Write the proportion equation
21,407,941.34 : 29,542,959.02 = 11,618,385.53 : x - Step 2: Convert to fraction form
21,407,941.34/29,542,959.02 = 11,618,385.53/x - Step 3: Cross multiply
21,407,941.34x = 29,542,959.02 × 11,618,385.53 - Step 4: Simplify right side
21,407,941.34x = 343,241,487,472,682.19 - Step 5: Solve for x
x = 343,241,487,472,682.19/21,407,941.34 - Step 6: Final answer
x = 16,033,372.01
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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.