Finding the Fourth Proportional to 653,734,205.90, 902,145,748.70 and 356,369,888.08
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Solution
The fourth proportional to 653,734,205.90, 902,145,748.70 and 356,369,888.08 is: 491,786,381.37
Step by Step Solution
- Step 1: Write the proportion equation
653,734,205.90 : 902,145,748.70 = 356,369,888.08 : x - Step 2: Convert to fraction form
653,734,205.90/902,145,748.70 = 356,369,888.08/x - Step 3: Cross multiply
653,734,205.90x = 902,145,748.70 × 356,369,888.08 - Step 4: Simplify right side
653,734,205.90x = 321,497,579,496,066,816 - Step 5: Solve for x
x = 321,497,579,496,066,816/653,734,205.90 - Step 6: Final answer
x = 491,786,381.37
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.