Finding the Fourth Proportional to 18,863,135.10, 28,294,702.65 and 18,863,135.10
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Solution
The fourth proportional to 18,863,135.10, 28,294,702.65 and 18,863,135.10 is: 28,294,702.65
Step by Step Solution
- Step 1: Write the proportion equation
18,863,135.10 : 28,294,702.65 = 18,863,135.10 : x - Step 2: Convert to fraction form
18,863,135.10/28,294,702.65 = 18,863,135.10/x - Step 3: Cross multiply
18,863,135.10x = 28,294,702.65 × 18,863,135.10 - Step 4: Simplify right side
18,863,135.10x = 533,726,798,701,278 - Step 5: Solve for x
x = 533,726,798,701,278/18,863,135.10 - Step 6: Final answer
x = 28,294,702.65
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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.