Finding the Fourth Proportional to 551,139,205.20, 826,708,807.80 and 245,029,189.20
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Solution
The fourth proportional to 551,139,205.20, 826,708,807.80 and 245,029,189.20 is: 367,543,783.80
Step by Step Solution
- Step 1: Write the proportion equation
551,139,205.20 : 826,708,807.80 = 245,029,189.20 : x - Step 2: Convert to fraction form
551,139,205.20/826,708,807.80 = 245,029,189.20/x - Step 3: Cross multiply
551,139,205.20x = 826,708,807.80 × 245,029,189.20 - Step 4: Simplify right side
551,139,205.20x = 202,567,788,879,732,608 - Step 5: Solve for x
x = 202,567,788,879,732,608/551,139,205.20 - Step 6: Final answer
x = 367,543,783.80
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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.