Finding the Fourth Proportional to 103,514,138.70, 155,139,331.95 and 55,015,226.70
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Solution
The fourth proportional to 103,514,138.70, 155,139,331.95 and 55,015,226.70 is: 82,452,751.14
Step by Step Solution
- Step 1: Write the proportion equation
103,514,138.70 : 155,139,331.95 = 55,015,226.70 : x - Step 2: Convert to fraction form
103,514,138.70/155,139,331.95 = 55,015,226.70/x - Step 3: Cross multiply
103,514,138.70x = 155,139,331.95 × 55,015,226.70 - Step 4: Simplify right side
103,514,138.70x = 8,535,025,517,315,803 - Step 5: Solve for x
x = 8,535,025,517,315,803/103,514,138.70 - Step 6: Final answer
x = 82,452,751.14
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.