Finding the Fourth Proportional to 115,309,404.69, 159,126,972.08 and 63,098,446.65
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Solution
The fourth proportional to 115,309,404.69, 159,126,972.08 and 63,098,446.65 is: 87,075,852.88
Step by Step Solution
- Step 1: Write the proportion equation
115,309,404.69 : 159,126,972.08 = 63,098,446.65 : x - Step 2: Convert to fraction form
115,309,404.69/159,126,972.08 = 63,098,446.65/x - Step 3: Cross multiply
115,309,404.69x = 159,126,972.08 × 63,098,446.65 - Step 4: Simplify right side
115,309,404.69x = 10,040,664,757,728,032 - Step 5: Solve for x
x = 10,040,664,757,728,032/115,309,404.69 - Step 6: Final answer
x = 87,075,852.88
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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.