Finding the Fourth Proportional to 6,440,545.40, 8,888,793.54 and 4,155,353.96
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Solution
The fourth proportional to 6,440,545.40, 8,888,793.54 and 4,155,353.96 is: 5,734,930.99
Step by Step Solution
- Step 1: Write the proportion equation
6,440,545.40 : 8,888,793.54 = 4,155,353.96 : x - Step 2: Convert to fraction form
6,440,545.40/8,888,793.54 = 4,155,353.96/x - Step 3: Cross multiply
6,440,545.40x = 8,888,793.54 × 4,155,353.96 - Step 4: Simplify right side
6,440,545.40x = 36,936,083,436,061.41 - Step 5: Solve for x
x = 36,936,083,436,061.41/6,440,545.40 - Step 6: Final answer
x = 5,734,930.99
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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.