Finding the Fourth Proportional to 66,434,139.70, 99,651,209.55 and 49,215,451.30
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Solution
The fourth proportional to 66,434,139.70, 99,651,209.55 and 49,215,451.30 is: 73,823,176.95
Step by Step Solution
- Step 1: Write the proportion equation
66,434,139.70 : 99,651,209.55 = 49,215,451.30 : x - Step 2: Convert to fraction form
66,434,139.70/99,651,209.55 = 49,215,451.30/x - Step 3: Cross multiply
66,434,139.70x = 99,651,209.55 × 49,215,451.30 - Step 4: Simplify right side
66,434,139.70x = 4,904,379,250,594,119 - Step 5: Solve for x
x = 4,904,379,250,594,119/66,434,139.70 - Step 6: Final answer
x = 73,823,176.95
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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.