Finding the Fourth Proportional to 15,515,917.48, 21,411,174.74 and 8,546,444.99
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Solution
The fourth proportional to 15,515,917.48, 21,411,174.74 and 8,546,444.99 is: 11,793,658.18
Step by Step Solution
- Step 1: Write the proportion equation
15,515,917.48 : 21,411,174.74 = 8,546,444.99 : x - Step 2: Convert to fraction form
15,515,917.48/21,411,174.74 = 8,546,444.99/x - Step 3: Cross multiply
15,515,917.48x = 21,411,174.74 × 8,546,444.99 - Step 4: Simplify right side
15,515,917.48x = 182,989,427,043,955.31 - Step 5: Solve for x
x = 182,989,427,043,955.31/15,515,917.48 - Step 6: Final answer
x = 11,793,658.18
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1.5x scale
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.