Finding the Fourth Proportional to 57,142,872.72, 78,858,203.20 and 32,368,203.44
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Solution
The fourth proportional to 57,142,872.72, 78,858,203.20 and 32,368,203.44 is: 44,668,709.19
Step by Step Solution
- Step 1: Write the proportion equation
57,142,872.72 : 78,858,203.20 = 32,368,203.44 : x - Step 2: Convert to fraction form
57,142,872.72/78,858,203.20 = 32,368,203.44/x - Step 3: Cross multiply
57,142,872.72x = 78,858,203.20 × 32,368,203.44 - Step 4: Simplify right side
57,142,872.72x = 2,552,498,364,090,459 - Step 5: Solve for x
x = 2,552,498,364,090,459/57,142,872.72 - Step 6: Final answer
x = 44,668,709.19
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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.