Finding the Fourth Proportional to 165,356,605.80, 248,034,908.70 and 79,263,163.80
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Solution
The fourth proportional to 165,356,605.80, 248,034,908.70 and 79,263,163.80 is: 118,894,745.70
Step by Step Solution
- Step 1: Write the proportion equation
165,356,605.80 : 248,034,908.70 = 79,263,163.80 : x - Step 2: Convert to fraction form
165,356,605.80/248,034,908.70 = 79,263,163.80/x - Step 3: Cross multiply
165,356,605.80x = 248,034,908.70 × 79,263,163.80 - Step 4: Simplify right side
165,356,605.80x = 19,660,031,596,406,144 - Step 5: Solve for x
x = 19,660,031,596,406,144/165,356,605.80 - Step 6: Final answer
x = 118,894,745.70
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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.