Finding the Fourth Proportional to 57,968,138.40, 86,952,207.60 and 55,480,207.20
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Solution
The fourth proportional to 57,968,138.40, 86,952,207.60 and 55,480,207.20 is: 83,220,310.80
Step by Step Solution
- Step 1: Write the proportion equation
57,968,138.40 : 86,952,207.60 = 55,480,207.20 : x - Step 2: Convert to fraction form
57,968,138.40/86,952,207.60 = 55,480,207.20/x - Step 3: Cross multiply
57,968,138.40x = 86,952,207.60 × 55,480,207.20 - Step 4: Simplify right side
57,968,138.40x = 4,824,126,494,145,415 - Step 5: Solve for x
x = 4,824,126,494,145,415/57,968,138.40 - Step 6: Final answer
x = 83,220,310.80
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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.