Finding the Fourth Proportional to 2,116,088.66, 2,921,412.84 and 1,393,038.26
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Solution
The fourth proportional to 2,116,088.66, 2,921,412.84 and 1,393,038.26 is: 1,923,189.67
Step by Step Solution
- Step 1: Write the proportion equation
2,116,088.66 : 2,921,412.84 = 1,393,038.26 : x - Step 2: Convert to fraction form
2,116,088.66/2,921,412.84 = 1,393,038.26/x - Step 3: Cross multiply
2,116,088.66x = 2,921,412.84 × 1,393,038.26 - Step 4: Simplify right side
2,116,088.66x = 4,069,639,859,375.26 - Step 5: Solve for x
x = 4,069,639,859,375.26/2,116,088.66 - Step 6: Final answer
x = 1,923,189.67
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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.