Finding the Fourth Proportional to 228,850,933.20, 315,810,567.18 and 124,431,634.05
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Solution
The fourth proportional to 228,850,933.20, 315,810,567.18 and 124,431,634.05 is: 171,713,631.99
Step by Step Solution
- Step 1: Write the proportion equation
228,850,933.20 : 315,810,567.18 = 124,431,634.05 : x - Step 2: Convert to fraction form
228,850,933.20/315,810,567.18 = 124,431,634.05/x - Step 3: Cross multiply
228,850,933.20x = 315,810,567.18 × 124,431,634.05 - Step 4: Simplify right side
228,850,933.20x = 39,296,824,924,464,704 - Step 5: Solve for x
x = 39,296,824,924,464,704/228,850,933.20 - Step 6: Final answer
x = 171,713,631.99
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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.