Finding the Fourth Proportional to 118,575,772.83, 163,639,680.57 and 65,652,480.05
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Solution
The fourth proportional to 118,575,772.83, 163,639,680.57 and 65,652,480.05 is: 90,603,253.99
Step by Step Solution
- Step 1: Write the proportion equation
118,575,772.83 : 163,639,680.57 = 65,652,480.05 : x - Step 2: Convert to fraction form
118,575,772.83/163,639,680.57 = 65,652,480.05/x - Step 3: Cross multiply
118,575,772.83x = 163,639,680.57 × 65,652,480.05 - Step 4: Simplify right side
118,575,772.83x = 10,743,350,863,192,100 - Step 5: Solve for x
x = 10,743,350,863,192,100/118,575,772.83 - Step 6: Final answer
x = 90,603,253.99
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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.