Finding the Fourth Proportional to 129,346,740.20, 194,020,110.30 and 83,430,237.80
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Solution
The fourth proportional to 129,346,740.20, 194,020,110.30 and 83,430,237.80 is: 125,145,356.70
Step by Step Solution
- Step 1: Write the proportion equation
129,346,740.20 : 194,020,110.30 = 83,430,237.80 : x - Step 2: Convert to fraction form
129,346,740.20/194,020,110.30 = 83,430,237.80/x - Step 3: Cross multiply
129,346,740.20x = 194,020,110.30 × 83,430,237.80 - Step 4: Simplify right side
129,346,740.20x = 16,187,143,940,311,230 - Step 5: Solve for x
x = 16,187,143,940,311,230/129,346,740.20 - Step 6: Final answer
x = 125,145,356.70
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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.