Finding the Fourth Proportional to 65,863,013.41, 90,890,869.36 and 36,496,247.75
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Solution
The fourth proportional to 65,863,013.41, 90,890,869.36 and 36,496,247.75 is: 50,364,772.50
Step by Step Solution
- Step 1: Write the proportion equation
65,863,013.41 : 90,890,869.36 = 36,496,247.75 : x - Step 2: Convert to fraction form
65,863,013.41/90,890,869.36 = 36,496,247.75/x - Step 3: Cross multiply
65,863,013.41x = 90,890,869.36 × 36,496,247.75 - Step 4: Simplify right side
65,863,013.41x = 3,317,175,686,375,444 - Step 5: Solve for x
x = 3,317,175,686,375,444/65,863,013.41 - Step 6: Final answer
x = 50,364,772.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.