Finding the Fourth Proportional to 38,678,859.99, 58,011,980.09 and 11,378,765.79
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Solution
The fourth proportional to 38,678,859.99, 58,011,980.09 and 11,378,765.79 is: 17,066,292.40
Step by Step Solution
- Step 1: Write the proportion equation
38,678,859.99 : 58,011,980.09 = 11,378,765.79 : x - Step 2: Convert to fraction form
38,678,859.99/58,011,980.09 = 11,378,765.79/x - Step 3: Cross multiply
38,678,859.99x = 58,011,980.09 × 11,378,765.79 - Step 4: Simplify right side
38,678,859.99x = 660,104,734,401,359.25 - Step 5: Solve for x
x = 660,104,734,401,359.25/38,678,859.99 - Step 6: Final answer
x = 17,066,292.40
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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.