Finding the Fourth Proportional to 420,250,716.79, 630,758,606.49 and 223,679,160.65
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Solution
The fourth proportional to 420,250,716.79, 630,758,606.49 and 223,679,160.65 is: 335,722,343.92
Step by Step Solution
- Step 1: Write the proportion equation
420,250,716.79 : 630,758,606.49 = 223,679,160.65 : x - Step 2: Convert to fraction form
420,250,716.79/630,758,606.49 = 223,679,160.65/x - Step 3: Cross multiply
420,250,716.79x = 630,758,606.49 × 223,679,160.65 - Step 4: Simplify right side
420,250,716.79x = 141,087,555,674,023,744 - Step 5: Solve for x
x = 141,087,555,674,023,744/420,250,716.79 - Step 6: Final answer
x = 335,722,343.92
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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.