Finding the Fourth Proportional to 4,672,403.40, 6,997,545.90 and 3,168,352.20
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Solution
The fourth proportional to 4,672,403.40, 6,997,545.90 and 3,168,352.20 is: 4,745,029.07
Step by Step Solution
- Step 1: Write the proportion equation
4,672,403.40 : 6,997,545.90 = 3,168,352.20 : x - Step 2: Convert to fraction form
4,672,403.40/6,997,545.90 = 3,168,352.20/x - Step 3: Cross multiply
4,672,403.40x = 6,997,545.90 × 3,168,352.20 - Step 4: Simplify right side
4,672,403.40x = 22,170,689,946,865.98 - Step 5: Solve for x
x = 22,170,689,946,865.98/4,672,403.40 - Step 6: Final answer
x = 4,745,029.07
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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.