Finding the Fourth Proportional to 87,249,489.60, 120,405,097.36 and 48,092,768.72
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Solution
The fourth proportional to 87,249,489.60, 120,405,097.36 and 48,092,768.72 is: 66,368,462.75
Step by Step Solution
- Step 1: Write the proportion equation
87,249,489.60 : 120,405,097.36 = 48,092,768.72 : x - Step 2: Convert to fraction form
87,249,489.60/120,405,097.36 = 48,092,768.72/x - Step 3: Cross multiply
87,249,489.60x = 120,405,097.36 × 48,092,768.72 - Step 4: Simplify right side
87,249,489.60x = 5,790,614,500,043,562 - Step 5: Solve for x
x = 5,790,614,500,043,562/87,249,489.60 - Step 6: Final answer
x = 66,368,462.75
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.