Finding the Fourth Proportional to 280,180,407.40, 419,703,740.70 and 194,016,106.60
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Solution
The fourth proportional to 280,180,407.40, 419,703,740.70 and 194,016,106.60 is: 290,631,620.00
Step by Step Solution
- Step 1: Write the proportion equation
280,180,407.40 : 419,703,740.70 = 194,016,106.60 : x - Step 2: Convert to fraction form
280,180,407.40/419,703,740.70 = 194,016,106.60/x - Step 3: Cross multiply
280,180,407.40x = 419,703,740.70 × 194,016,106.60 - Step 4: Simplify right side
280,180,407.40x = 81,429,285,696,069,952 - Step 5: Solve for x
x = 81,429,285,696,069,952/280,180,407.40 - Step 6: Final answer
x = 290,631,620.00
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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.