Finding the Fourth Proportional to 136,159,707.06, 203,177,576.78 and 121,485,768.12
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Solution
The fourth proportional to 136,159,707.06, 203,177,576.78 and 121,485,768.12 is: 181,281,118.42
Step by Step Solution
- Step 1: Write the proportion equation
136,159,707.06 : 203,177,576.78 = 121,485,768.12 : x - Step 2: Convert to fraction form
136,159,707.06/203,177,576.78 = 121,485,768.12/x - Step 3: Cross multiply
136,159,707.06x = 203,177,576.78 × 121,485,768.12 - Step 4: Simplify right side
136,159,707.06x = 24,683,183,979,878,576 - Step 5: Solve for x
x = 24,683,183,979,878,576/136,159,707.06 - Step 6: Final answer
x = 181,281,118.42
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.