Finding the Fourth Proportional to 120,311,081.73, 180,155,815.74 and 83,034,720.09
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Solution
The fourth proportional to 120,311,081.73, 180,155,815.74 and 83,034,720.09 is: 124,337,571.55
Step by Step Solution
- Step 1: Write the proportion equation
120,311,081.73 : 180,155,815.74 = 83,034,720.09 : x - Step 2: Convert to fraction form
120,311,081.73/180,155,815.74 = 83,034,720.09/x - Step 3: Cross multiply
120,311,081.73x = 180,155,815.74 × 83,034,720.09 - Step 4: Simplify right side
120,311,081.73x = 14,959,187,732,556,518 - Step 5: Solve for x
x = 14,959,187,732,556,518/120,311,081.73 - Step 6: Final answer
x = 124,337,571.55
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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.