Finding the Fourth Proportional to 245,902,722.12, 339,346,087.20 and 141,478,699.05
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Solution
The fourth proportional to 245,902,722.12, 339,346,087.20 and 141,478,699.05 is: 195,240,794.94
Step by Step Solution
- Step 1: Write the proportion equation
245,902,722.12 : 339,346,087.20 = 141,478,699.05 : x - Step 2: Convert to fraction form
245,902,722.12/339,346,087.20 = 141,478,699.05/x - Step 3: Cross multiply
245,902,722.12x = 339,346,087.20 × 141,478,699.05 - Step 4: Simplify right side
245,902,722.12x = 48,010,242,944,763,856 - Step 5: Solve for x
x = 48,010,242,944,763,856/245,902,722.12 - Step 6: Final answer
x = 195,240,794.94
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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.