Finding the Fourth Proportional to 408,621,858.08, 563,910,072.84 and 222,994,830.32
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Solution
The fourth proportional to 408,621,858.08, 563,910,072.84 and 222,994,830.32 is: 307,739,364.70
Step by Step Solution
- Step 1: Write the proportion equation
408,621,858.08 : 563,910,072.84 = 222,994,830.32 : x - Step 2: Convert to fraction form
408,621,858.08/563,910,072.84 = 222,994,830.32/x - Step 3: Cross multiply
408,621,858.08x = 563,910,072.84 × 222,994,830.32 - Step 4: Simplify right side
408,621,858.08x = 125,749,031,008,694,640 - Step 5: Solve for x
x = 125,749,031,008,694,640/408,621,858.08 - Step 6: Final answer
x = 307,739,364.70
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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.