Finding the Fourth Proportional to 220,233,768.36, 303,930,405.36 and 121,122,178.44
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Solution
The fourth proportional to 220,233,768.36, 303,930,405.36 and 121,122,178.44 is: 167,152,898.78
Step by Step Solution
- Step 1: Write the proportion equation
220,233,768.36 : 303,930,405.36 = 121,122,178.44 : x - Step 2: Convert to fraction form
220,233,768.36/303,930,405.36 = 121,122,178.44/x - Step 3: Cross multiply
220,233,768.36x = 303,930,405.36 × 121,122,178.44 - Step 4: Simplify right side
220,233,768.36x = 36,812,712,791,355,456 - Step 5: Solve for x
x = 36,812,712,791,355,456/220,233,768.36 - Step 6: Final answer
x = 167,152,898.78
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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.