Finding the Fourth Proportional to 38,208,387.12, 52,727,349.60 and 20,804,690.70
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Solution
The fourth proportional to 38,208,387.12, 52,727,349.60 and 20,804,690.70 is: 28,710,350.86
Step by Step Solution
- Step 1: Write the proportion equation
38,208,387.12 : 52,727,349.60 = 20,804,690.70 : x - Step 2: Convert to fraction form
38,208,387.12/52,727,349.60 = 20,804,690.70/x - Step 3: Cross multiply
38,208,387.12x = 52,727,349.60 × 20,804,690.70 - Step 4: Simplify right side
38,208,387.12x = 1,096,976,199,858,768.75 - Step 5: Solve for x
x = 1,096,976,199,858,768.75/38,208,387.12 - Step 6: Final answer
x = 28,710,350.86
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1.5x scale
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.