Finding the Fourth Proportional to 4,392,983,978.87, 6,062,691,776.64 and 2,488,084,321.55
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Solution
The fourth proportional to 4,392,983,978.87, 6,062,691,776.64 and 2,488,084,321.55 is: 3,433,768,123.99
Step by Step Solution
- Step 1: Write the proportion equation
4,392,983,978.87 : 6,062,691,776.64 = 2,488,084,321.55 : x - Step 2: Convert to fraction form
4,392,983,978.87/6,062,691,776.64 = 2,488,084,321.55/x - Step 3: Cross multiply
4,392,983,978.87x = 6,062,691,776.64 × 2,488,084,321.55 - Step 4: Simplify right side
4,392,983,978.87x = 15,084,488,355,848,099,840 - Step 5: Solve for x
x = 15,084,488,355,848,099,840/4,392,983,978.87 - Step 6: Final answer
x = 3,433,768,123.99
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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.