Finding the Fourth Proportional to 75,402,292.70, 113,103,439.05 and 37,138,540.70
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Solution
The fourth proportional to 75,402,292.70, 113,103,439.05 and 37,138,540.70 is: 55,707,811.05
Step by Step Solution
- Step 1: Write the proportion equation
75,402,292.70 : 113,103,439.05 = 37,138,540.70 : x - Step 2: Convert to fraction form
75,402,292.70/113,103,439.05 = 37,138,540.70/x - Step 3: Cross multiply
75,402,292.70x = 113,103,439.05 × 37,138,540.70 - Step 4: Simplify right side
75,402,292.70x = 4,200,496,674,468,394.50 - Step 5: Solve for x
x = 4,200,496,674,468,394.50/75,402,292.70 - Step 6: Final answer
x = 55,707,811.05
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Double scale
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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.