Finding the Fourth Proportional to 12,997,920.57, 19,497,102.29 and 4,914,702.96
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Solution
The fourth proportional to 12,997,920.57, 19,497,102.29 and 4,914,702.96 is: 7,372,138.17
Step by Step Solution
- Step 1: Write the proportion equation
12,997,920.57 : 19,497,102.29 = 4,914,702.96 : x - Step 2: Convert to fraction form
12,997,920.57/19,497,102.29 = 4,914,702.96/x - Step 3: Cross multiply
12,997,920.57x = 19,497,102.29 × 4,914,702.96 - Step 4: Simplify right side
12,997,920.57x = 95,822,466,336,085.77 - Step 5: Solve for x
x = 95,822,466,336,085.77/12,997,920.57 - Step 6: Final answer
x = 7,372,138.17
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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.