Finding the Fourth Proportional to 28,056,923.70, 42,085,385.55 and 27,217,115.70
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Solution
The fourth proportional to 28,056,923.70, 42,085,385.55 and 27,217,115.70 is: 40,825,673.55
Step by Step Solution
- Step 1: Write the proportion equation
28,056,923.70 : 42,085,385.55 = 27,217,115.70 : x - Step 2: Convert to fraction form
28,056,923.70/42,085,385.55 = 27,217,115.70/x - Step 3: Cross multiply
28,056,923.70x = 42,085,385.55 × 27,217,115.70 - Step 4: Simplify right side
28,056,923.70x = 1,145,442,807,793,458 - Step 5: Solve for x
x = 1,145,442,807,793,458/28,056,923.70 - Step 6: Final answer
x = 40,825,673.55
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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.