Finding the Fourth Proportional to 221,733,529.16, 305,994,251.93 and 122,620,944.51
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Solution
The fourth proportional to 221,733,529.16, 305,994,251.93 and 122,620,944.51 is: 169,217,999.32
Step by Step Solution
- Step 1: Write the proportion equation
221,733,529.16 : 305,994,251.93 = 122,620,944.51 : x - Step 2: Convert to fraction form
221,733,529.16/305,994,251.93 = 122,620,944.51/x - Step 3: Cross multiply
221,733,529.16x = 305,994,251.93 × 122,620,944.51 - Step 4: Simplify right side
221,733,529.16x = 37,521,304,185,674,392 - Step 5: Solve for x
x = 37,521,304,185,674,392/221,733,529.16 - Step 6: Final answer
x = 169,217,999.32
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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.