Finding the Fourth Proportional to 128,981,131.67, 193,280,378.59 and 94,735,073.63
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Solution
The fourth proportional to 128,981,131.67, 193,280,378.59 and 94,735,073.63 is: 141,962,089.03
Step by Step Solution
- Step 1: Write the proportion equation
128,981,131.67 : 193,280,378.59 = 94,735,073.63 : x - Step 2: Convert to fraction form
128,981,131.67/193,280,378.59 = 94,735,073.63/x - Step 3: Cross multiply
128,981,131.67x = 193,280,378.59 × 94,735,073.63 - Step 4: Simplify right side
128,981,131.67x = 18,310,430,896,957,924 - Step 5: Solve for x
x = 18,310,430,896,957,924/128,981,131.67 - Step 6: Final answer
x = 141,962,089.03
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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.