Finding the Fourth Proportional to 387,973,669.08, 582,217,533.94 and 213,218,741.75
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Solution
The fourth proportional to 387,973,669.08, 582,217,533.94 and 213,218,741.75 is: 319,969,368.80
Step by Step Solution
- Step 1: Write the proportion equation
387,973,669.08 : 582,217,533.94 = 213,218,741.75 : x - Step 2: Convert to fraction form
387,973,669.08/582,217,533.94 = 213,218,741.75/x - Step 3: Cross multiply
387,973,669.08x = 582,217,533.94 × 213,218,741.75 - Step 4: Simplify right side
387,973,669.08x = 124,139,690,008,431,456 - Step 5: Solve for x
x = 124,139,690,008,431,456/387,973,669.08 - Step 6: Final answer
x = 319,969,368.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.