Finding the Fourth Proportional to 137,259,219.87, 189,347,683.93 and 87,647,431.05
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Solution
The fourth proportional to 137,259,219.87, 189,347,683.93 and 87,647,431.05 is: 120,908,730.85
Step by Step Solution
- Step 1: Write the proportion equation
137,259,219.87 : 189,347,683.93 = 87,647,431.05 : x - Step 2: Convert to fraction form
137,259,219.87/189,347,683.93 = 87,647,431.05/x - Step 3: Cross multiply
137,259,219.87x = 189,347,683.93 × 87,647,431.05 - Step 4: Simplify right side
137,259,219.87x = 16,595,838,071,293,632 - Step 5: Solve for x
x = 16,595,838,071,293,632/137,259,219.87 - Step 6: Final answer
x = 120,908,730.85
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.