Finding the Fourth Proportional to 129,431,813.85, 193,438,514.55 and 94,490,509.40
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Solution
The fourth proportional to 129,431,813.85, 193,438,514.55 and 94,490,509.40 is: 141,218,014.59
Step by Step Solution
- Step 1: Write the proportion equation
129,431,813.85 : 193,438,514.55 = 94,490,509.40 : x - Step 2: Convert to fraction form
129,431,813.85/193,438,514.55 = 94,490,509.40/x - Step 3: Cross multiply
129,431,813.85x = 193,438,514.55 × 94,490,509.40 - Step 4: Simplify right side
129,431,813.85x = 18,278,103,776,441,620 - Step 5: Solve for x
x = 18,278,103,776,441,620/129,431,813.85 - Step 6: Final answer
x = 141,218,014.59
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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.