Finding the Fourth Proportional to 210,029,719.70, 289,833,416.80 and 115,941,846.49
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Solution
The fourth proportional to 210,029,719.70, 289,833,416.80 and 115,941,846.49 is: 159,995,554.75
Step by Step Solution
- Step 1: Write the proportion equation
210,029,719.70 : 289,833,416.80 = 115,941,846.49 : x - Step 2: Convert to fraction form
210,029,719.70/289,833,416.80 = 115,941,846.49/x - Step 3: Cross multiply
210,029,719.70x = 289,833,416.80 × 115,941,846.49 - Step 4: Simplify right side
210,029,719.70x = 33,603,821,517,283,348 - Step 5: Solve for x
x = 33,603,821,517,283,348/210,029,719.70 - Step 6: Final answer
x = 159,995,554.75
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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.