Finding the Fourth Proportional to 124,497,015.40, 186,745,523.10 and 81,498,845.80
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Solution
The fourth proportional to 124,497,015.40, 186,745,523.10 and 81,498,845.80 is: 122,248,268.70
Step by Step Solution
- Step 1: Write the proportion equation
124,497,015.40 : 186,745,523.10 = 81,498,845.80 : x - Step 2: Convert to fraction form
124,497,015.40/186,745,523.10 = 81,498,845.80/x - Step 3: Cross multiply
124,497,015.40x = 186,745,523.10 × 81,498,845.80 - Step 4: Simplify right side
124,497,015.40x = 15,219,544,590,967,236 - Step 5: Solve for x
x = 15,219,544,590,967,236/124,497,015.40 - Step 6: Final answer
x = 122,248,268.70
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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.