Finding the Fourth Proportional to 194,048,390.40, 291,072,585.60 and 79,115,416.80
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Solution
The fourth proportional to 194,048,390.40, 291,072,585.60 and 79,115,416.80 is: 118,673,125.20
Step by Step Solution
- Step 1: Write the proportion equation
194,048,390.40 : 291,072,585.60 = 79,115,416.80 : x - Step 2: Convert to fraction form
194,048,390.40/291,072,585.60 = 79,115,416.80/x - Step 3: Cross multiply
194,048,390.40x = 291,072,585.60 × 79,115,416.80 - Step 4: Simplify right side
194,048,390.40x = 23,028,328,928,797,680 - Step 5: Solve for x
x = 23,028,328,928,797,680/194,048,390.40 - Step 6: Final answer
x = 118,673,125.20
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.