Finding the Fourth Proportional to 18,968,949.29, 28,453,444.46 and 8,878,656.17
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Solution
The fourth proportional to 18,968,949.29, 28,453,444.46 and 8,878,656.17 is: 13,317,993.86
Step by Step Solution
- Step 1: Write the proportion equation
18,968,949.29 : 28,453,444.46 = 8,878,656.17 : x - Step 2: Convert to fraction form
18,968,949.29/28,453,444.46 = 8,878,656.17/x - Step 3: Cross multiply
18,968,949.29x = 28,453,444.46 × 8,878,656.17 - Step 4: Simplify right side
18,968,949.29x = 252,628,350,212,531.31 - Step 5: Solve for x
x = 252,628,350,212,531.31/18,968,949.29 - Step 6: Final answer
x = 13,317,993.86
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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.