Finding the Fourth Proportional to 181,656,355.66, 251,013,687.92 and 129,354,590.05
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Solution
The fourth proportional to 181,656,355.66, 251,013,687.92 and 129,354,590.05 is: 178,742,838.80
Step by Step Solution
- Step 1: Write the proportion equation
181,656,355.66 : 251,013,687.92 = 129,354,590.05 : x - Step 2: Convert to fraction form
181,656,355.66/251,013,687.92 = 129,354,590.05/x - Step 3: Cross multiply
181,656,355.66x = 251,013,687.92 × 129,354,590.05 - Step 4: Simplify right side
181,656,355.66x = 32,469,772,697,041,008 - Step 5: Solve for x
x = 32,469,772,697,041,008/181,656,355.66 - Step 6: Final answer
x = 178,742,838.80
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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.