Finding the Fourth Proportional to 578,463,388.92, 798,395,343.84 and 343,644,499.08
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Solution
The fourth proportional to 578,463,388.92, 798,395,343.84 and 343,644,499.08 is: 474,298,241.27
Step by Step Solution
- Step 1: Write the proportion equation
578,463,388.92 : 798,395,343.84 = 343,644,499.08 : x - Step 2: Convert to fraction form
578,463,388.92/798,395,343.84 = 343,644,499.08/x - Step 3: Cross multiply
578,463,388.92x = 798,395,343.84 × 343,644,499.08 - Step 4: Simplify right side
578,463,388.92x = 274,364,168,001,701,152 - Step 5: Solve for x
x = 274,364,168,001,701,152/578,463,388.92 - Step 6: Final answer
x = 474,298,241.27
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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.