Finding the Fourth Proportional to 64,777,971.69, 97,166,957.54 and 21,647,175.06
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Solution
The fourth proportional to 64,777,971.69, 97,166,957.54 and 21,647,175.06 is: 32,470,762.59
Step by Step Solution
- Step 1: Write the proportion equation
64,777,971.69 : 97,166,957.54 = 21,647,175.06 : x - Step 2: Convert to fraction form
64,777,971.69/97,166,957.54 = 21,647,175.06/x - Step 3: Cross multiply
64,777,971.69x = 97,166,957.54 × 21,647,175.06 - Step 4: Simplify right side
64,777,971.69x = 2,103,390,139,915,967 - Step 5: Solve for x
x = 2,103,390,139,915,967/64,777,971.69 - Step 6: Final answer
x = 32,470,762.59
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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.