Finding the Fourth Proportional to 19,418,543.10, 29,127,814.65 and 8,081,135.10
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Solution
The fourth proportional to 19,418,543.10, 29,127,814.65 and 8,081,135.10 is: 12,121,702.65
Step by Step Solution
- Step 1: Write the proportion equation
19,418,543.10 : 29,127,814.65 = 8,081,135.10 : x - Step 2: Convert to fraction form
19,418,543.10/29,127,814.65 = 8,081,135.10/x - Step 3: Cross multiply
19,418,543.10x = 29,127,814.65 × 8,081,135.10 - Step 4: Simplify right side
19,418,543.10x = 235,385,805,354,409.19 - Step 5: Solve for x
x = 235,385,805,354,409.19/19,418,543.10 - Step 6: Final answer
x = 12,121,702.65
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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.