Finding the Fourth Proportional to 21,387,680.70, 32,081,521.05 and 16,348,832.70
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Solution
The fourth proportional to 21,387,680.70, 32,081,521.05 and 16,348,832.70 is: 24,523,249.05
Step by Step Solution
- Step 1: Write the proportion equation
21,387,680.70 : 32,081,521.05 = 16,348,832.70 : x - Step 2: Convert to fraction form
21,387,680.70/32,081,521.05 = 16,348,832.70/x - Step 3: Cross multiply
21,387,680.70x = 32,081,521.05 × 16,348,832.70 - Step 4: Simplify right side
21,387,680.70x = 524,495,420,407,978.31 - Step 5: Solve for x
x = 524,495,420,407,978.31/21,387,680.70 - Step 6: Final answer
x = 24,523,249.05
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1.5x scale
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.