Finding the Fourth Proportional to 99,742,813.20, 149,273,922.60 and 83,587,006.80
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Solution
The fourth proportional to 99,742,813.20, 149,273,922.60 and 83,587,006.80 is: 125,095,332.52
Step by Step Solution
- Step 1: Write the proportion equation
99,742,813.20 : 149,273,922.60 = 83,587,006.80 : x - Step 2: Convert to fraction form
99,742,813.20/149,273,922.60 = 83,587,006.80/x - Step 3: Cross multiply
99,742,813.20x = 149,273,922.60 × 83,587,006.80 - Step 4: Simplify right side
99,742,813.20x = 12,477,360,383,428,872 - Step 5: Solve for x
x = 12,477,360,383,428,872/99,742,813.20 - Step 6: Final answer
x = 125,095,332.52
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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.