Finding the Fourth Proportional to 70,449,410.88, 97,220,891.16 and 39,508,915.68
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Solution
The fourth proportional to 70,449,410.88, 97,220,891.16 and 39,508,915.68 is: 54,522,698.53
Step by Step Solution
- Step 1: Write the proportion equation
70,449,410.88 : 97,220,891.16 = 39,508,915.68 : x - Step 2: Convert to fraction form
70,449,410.88/97,220,891.16 = 39,508,915.68/x - Step 3: Cross multiply
70,449,410.88x = 97,220,891.16 × 39,508,915.68 - Step 4: Simplify right side
70,449,410.88x = 3,841,091,991,174,897 - Step 5: Solve for x
x = 3,841,091,991,174,897/70,449,410.88 - Step 6: Final answer
x = 54,522,698.53
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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.