Finding the Fourth Proportional to 36,154,949.20, 49,881,691.36 and 20,471,830.24
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Solution
The fourth proportional to 36,154,949.20, 49,881,691.36 and 20,471,830.24 is: 28,244,252.59
Step by Step Solution
- Step 1: Write the proportion equation
36,154,949.20 : 49,881,691.36 = 20,471,830.24 : x - Step 2: Convert to fraction form
36,154,949.20/49,881,691.36 = 20,471,830.24/x - Step 3: Cross multiply
36,154,949.20x = 49,881,691.36 × 20,471,830.24 - Step 4: Simplify right side
36,154,949.20x = 1,021,169,517,605,994.62 - Step 5: Solve for x
x = 1,021,169,517,605,994.62/36,154,949.20 - Step 6: Final answer
x = 28,244,252.59
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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.