Finding the Fourth Proportional to 81,186,683.11, 121,807,096.08 and 54,000,154.15
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Solution
The fourth proportional to 81,186,683.11, 121,807,096.08 and 54,000,154.15 is: 81,018,237.39
Step by Step Solution
- Step 1: Write the proportion equation
81,186,683.11 : 121,807,096.08 = 54,000,154.15 : x - Step 2: Convert to fraction form
81,186,683.11/121,807,096.08 = 54,000,154.15/x - Step 3: Cross multiply
81,186,683.11x = 121,807,096.08 × 54,000,154.15 - Step 4: Simplify right side
81,186,683.11x = 6,577,601,964,883,860 - Step 5: Solve for x
x = 6,577,601,964,883,860/81,186,683.11 - Step 6: Final answer
x = 81,018,237.39
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.