Finding the Fourth Proportional to 91,782,969.10, 137,355,589.05 and 84,130,218.70
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Solution
The fourth proportional to 91,782,969.10, 137,355,589.05 and 84,130,218.70 is: 125,903,049.99
Step by Step Solution
- Step 1: Write the proportion equation
91,782,969.10 : 137,355,589.05 = 84,130,218.70 : x - Step 2: Convert to fraction form
91,782,969.10/137,355,589.05 = 84,130,218.70/x - Step 3: Cross multiply
91,782,969.10x = 137,355,589.05 × 84,130,218.70 - Step 4: Simplify right side
91,782,969.10x = 11,555,755,746,443,826 - Step 5: Solve for x
x = 11,555,755,746,443,826/91,782,969.10 - Step 6: Final answer
x = 125,903,049.99
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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.