Finding the Fourth Proportional to 128,326,627.20, 192,489,940.80 and 98,093,539.20
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Solution
The fourth proportional to 128,326,627.20, 192,489,940.80 and 98,093,539.20 is: 147,140,308.80
Step by Step Solution
- Step 1: Write the proportion equation
128,326,627.20 : 192,489,940.80 = 98,093,539.20 : x - Step 2: Convert to fraction form
128,326,627.20/192,489,940.80 = 98,093,539.20/x - Step 3: Cross multiply
128,326,627.20x = 192,489,940.80 × 98,093,539.20 - Step 4: Simplify right side
128,326,627.20x = 18,882,019,553,470,480 - Step 5: Solve for x
x = 18,882,019,553,470,480/128,326,627.20 - Step 6: Final answer
x = 147,140,308.80
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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.