Finding the Fourth Proportional to 206,878,290, 310,318,990.56 and 91,831,903.44
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Solution
The fourth proportional to 206,878,290, 310,318,990.56 and 91,831,903.44 is: 137,748,545.66
Step by Step Solution
- Step 1: Write the proportion equation
206,878,290 : 310,318,990.56 = 91,831,903.44 : x - Step 2: Convert to fraction form
206,878,290/310,318,990.56 = 91,831,903.44/x - Step 3: Cross multiply
206,878,290x = 310,318,990.56 × 91,831,903.44 - Step 4: Simplify right side
206,878,290x = 28,497,183,576,704,192 - Step 5: Solve for x
x = 28,497,183,576,704,192/206,878,290 - Step 6: Final answer
x = 137,748,545.66
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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.