Finding the Fourth Proportional to 75,402,279.70, 113,103,419.55 and 37,138,527.70
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Solution
The fourth proportional to 75,402,279.70, 113,103,419.55 and 37,138,527.70 is: 55,707,791.55
Step by Step Solution
- Step 1: Write the proportion equation
75,402,279.70 : 113,103,419.55 = 37,138,527.70 : x - Step 2: Convert to fraction form
75,402,279.70/113,103,419.55 = 37,138,527.70/x - Step 3: Cross multiply
75,402,279.70x = 113,103,419.55 × 37,138,527.70 - Step 4: Simplify right side
75,402,279.70x = 4,200,494,479,922,397 - Step 5: Solve for x
x = 4,200,494,479,922,397/75,402,279.70 - Step 6: Final answer
x = 55,707,791.55
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Double scale
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Similar ratio
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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.