Finding the Fourth Proportional to 492,816,040.80, 739,176,020.10 and 129,310,396.80
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Solution
The fourth proportional to 492,816,040.80, 739,176,020.10 and 129,310,396.80 is: 193,952,989.66
Step by Step Solution
- Step 1: Write the proportion equation
492,816,040.80 : 739,176,020.10 = 129,310,396.80 : x - Step 2: Convert to fraction form
492,816,040.80/739,176,020.10 = 129,310,396.80/x - Step 3: Cross multiply
492,816,040.80x = 739,176,020.10 × 129,310,396.80 - Step 4: Simplify right side
492,816,040.80x = 95,583,144,464,175,776 - Step 5: Solve for x
x = 95,583,144,464,175,776/492,816,040.80 - Step 6: Final answer
x = 193,952,989.66
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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.