Finding the Fourth Proportional to 409,863,988.26, 614,152,523.57 and 278,768,786.67
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Solution
The fourth proportional to 409,863,988.26, 614,152,523.57 and 278,768,786.67 is: 417,715,531.81
Step by Step Solution
- Step 1: Write the proportion equation
409,863,988.26 : 614,152,523.57 = 278,768,786.67 : x - Step 2: Convert to fraction form
409,863,988.26/614,152,523.57 = 278,768,786.67/x - Step 3: Cross multiply
409,863,988.26x = 614,152,523.57 × 278,768,786.67 - Step 4: Simplify right side
409,863,988.26x = 171,206,553,824,533,664 - Step 5: Solve for x
x = 171,206,553,824,533,664/409,863,988.26 - Step 6: Final answer
x = 417,715,531.81
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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.