Finding the Fourth Proportional to 319,125,439.60, 478,713,042.60 and 137,378,546.80
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Solution
The fourth proportional to 319,125,439.60, 478,713,042.60 and 137,378,546.80 is: 206,078,532.03
Step by Step Solution
- Step 1: Write the proportion equation
319,125,439.60 : 478,713,042.60 = 137,378,546.80 : x - Step 2: Convert to fraction form
319,125,439.60/478,713,042.60 = 137,378,546.80/x - Step 3: Cross multiply
319,125,439.60x = 478,713,042.60 × 137,378,546.80 - Step 4: Simplify right side
319,125,439.60x = 65,764,902,126,594,504 - Step 5: Solve for x
x = 65,764,902,126,594,504/319,125,439.60 - Step 6: Final answer
x = 206,078,532.03
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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.