Finding the Fourth Proportional to 138,528,847.71, 207,798,586.11 and 61,852,540.23
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Solution
The fourth proportional to 138,528,847.71, 207,798,586.11 and 61,852,540.23 is: 92,781,183.27
Step by Step Solution
- Step 1: Write the proportion equation
138,528,847.71 : 207,798,586.11 = 61,852,540.23 : x - Step 2: Convert to fraction form
138,528,847.71/207,798,586.11 = 61,852,540.23/x - Step 3: Cross multiply
138,528,847.71x = 207,798,586.11 × 61,852,540.23 - Step 4: Simplify right side
138,528,847.71x = 12,852,870,407,105,894 - Step 5: Solve for x
x = 12,852,870,407,105,894/138,528,847.71 - Step 6: Final answer
x = 92,781,183.27
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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.