Finding the Fourth Proportional to 21,306,228, 29,403,772.56 and 12,137,114.40
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Solution
The fourth proportional to 21,306,228, 29,403,772.56 and 12,137,114.40 is: 16,749,888.88
Step by Step Solution
- Step 1: Write the proportion equation
21,306,228 : 29,403,772.56 = 12,137,114.40 : x - Step 2: Convert to fraction form
21,306,228/29,403,772.56 = 12,137,114.40/x - Step 3: Cross multiply
21,306,228x = 29,403,772.56 × 12,137,114.40 - Step 4: Simplify right side
21,306,228x = 356,876,951,352,300.88 - Step 5: Solve for x
x = 356,876,951,352,300.88/21,306,228 - Step 6: Final answer
x = 16,749,888.88
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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.