Finding the Fourth Proportional to 129,784,690.26, 178,912,058.85 and 98,790,876.18
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Solution
The fourth proportional to 129,784,690.26, 178,912,058.85 and 98,790,876.18 is: 136,186,163.54
Step by Step Solution
- Step 1: Write the proportion equation
129,784,690.26 : 178,912,058.85 = 98,790,876.18 : x - Step 2: Convert to fraction form
129,784,690.26/178,912,058.85 = 98,790,876.18/x - Step 3: Cross multiply
129,784,690.26x = 178,912,058.85 × 98,790,876.18 - Step 4: Simplify right side
129,784,690.26x = 17,674,879,052,959,224 - Step 5: Solve for x
x = 17,674,879,052,959,224/129,784,690.26 - Step 6: Final answer
x = 136,186,163.54
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.