Finding the Fourth Proportional to 3,806,407.12, 5,252,355.99 and 2,174,920.15
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Solution
The fourth proportional to 3,806,407.12, 5,252,355.99 and 2,174,920.15 is: 3,001,112.21
Step by Step Solution
- Step 1: Write the proportion equation
3,806,407.12 : 5,252,355.99 = 2,174,920.15 : x - Step 2: Convert to fraction form
3,806,407.12/5,252,355.99 = 2,174,920.15/x - Step 3: Cross multiply
3,806,407.12x = 5,252,355.99 × 2,174,920.15 - Step 4: Simplify right side
3,806,407.12x = 11,423,454,877,624.20 - Step 5: Solve for x
x = 11,423,454,877,624.20/3,806,407.12 - Step 6: Final answer
x = 3,001,112.21
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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.