Finding the Fourth Proportional to 511,202,405.20, 766,803,607.80 and 511,202,405.20
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Solution
The fourth proportional to 511,202,405.20, 766,803,607.80 and 511,202,405.20 is: 766,803,607.80
Step by Step Solution
- Step 1: Write the proportion equation
511,202,405.20 : 766,803,607.80 = 511,202,405.20 : x - Step 2: Convert to fraction form
511,202,405.20/766,803,607.80 = 511,202,405.20/x - Step 3: Cross multiply
511,202,405.20x = 766,803,607.80 × 511,202,405.20 - Step 4: Simplify right side
511,202,405.20x = 391,991,848,623,397,440 - Step 5: Solve for x
x = 391,991,848,623,397,440/511,202,405.20 - Step 6: Final answer
x = 766,803,607.80
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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.