Finding the Fourth Proportional to 28,125,385.39, 42,192,120.84 and 8,696,126.62
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Solution
The fourth proportional to 28,125,385.39, 42,192,120.84 and 8,696,126.62 is: 13,045,439.91
Step by Step Solution
- Step 1: Write the proportion equation
28,125,385.39 : 42,192,120.84 = 8,696,126.62 : x - Step 2: Convert to fraction form
28,125,385.39/42,192,120.84 = 8,696,126.62/x - Step 3: Cross multiply
28,125,385.39x = 42,192,120.84 × 8,696,126.62 - Step 4: Simplify right side
28,125,385.39x = 366,908,025,190,980.75 - Step 5: Solve for x
x = 366,908,025,190,980.75/28,125,385.39 - Step 6: Final answer
x = 13,045,439.91
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1.5x scale
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.