Finding the Fourth Proportional to 45,428,874.70, 68,143,312.05 and 27,289,021.90
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Solution
The fourth proportional to 45,428,874.70, 68,143,312.05 and 27,289,021.90 is: 40,933,532.85
Step by Step Solution
- Step 1: Write the proportion equation
45,428,874.70 : 68,143,312.05 = 27,289,021.90 : x - Step 2: Convert to fraction form
45,428,874.70/68,143,312.05 = 27,289,021.90/x - Step 3: Cross multiply
45,428,874.70x = 68,143,312.05 × 27,289,021.90 - Step 4: Simplify right side
45,428,874.70x = 1,859,564,334,870,983.75 - Step 5: Solve for x
x = 1,859,564,334,870,983.75/45,428,874.70 - Step 6: Final answer
x = 40,933,532.85
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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.