Finding the Fourth Proportional to 57,780,961.08, 79,737,432.48 and 31,319,208.24
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Solution
The fourth proportional to 57,780,961.08, 79,737,432.48 and 31,319,208.24 is: 43,220,348.12
Step by Step Solution
- Step 1: Write the proportion equation
57,780,961.08 : 79,737,432.48 = 31,319,208.24 : x - Step 2: Convert to fraction form
57,780,961.08/79,737,432.48 = 31,319,208.24/x - Step 3: Cross multiply
57,780,961.08x = 79,737,432.48 × 31,319,208.24 - Step 4: Simplify right side
57,780,961.08x = 2,497,313,252,364,059.50 - Step 5: Solve for x
x = 2,497,313,252,364,059.50/57,780,961.08 - Step 6: Final answer
x = 43,220,348.12
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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.