Finding the Fourth Proportional to 511,181,203.70, 766,771,805.55 and 511,181,203.70
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Solution
The fourth proportional to 511,181,203.70, 766,771,805.55 and 511,181,203.70 is: 766,771,805.55
Step by Step Solution
- Step 1: Write the proportion equation
511,181,203.70 : 766,771,805.55 = 511,181,203.70 : x - Step 2: Convert to fraction form
511,181,203.70/766,771,805.55 = 511,181,203.70/x - Step 3: Cross multiply
511,181,203.70x = 766,771,805.55 × 511,181,203.70 - Step 4: Simplify right side
511,181,203.70x = 391,959,334,524,271,296 - Step 5: Solve for x
x = 391,959,334,524,271,296/511,181,203.70 - Step 6: Final answer
x = 766,771,805.55
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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.