Finding the Fourth Proportional to 85,346,424.12, 117,778,799.34 and 48,678,851.64
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Solution
The fourth proportional to 85,346,424.12, 117,778,799.34 and 48,678,851.64 is: 67,177,233.94
Step by Step Solution
- Step 1: Write the proportion equation
85,346,424.12 : 117,778,799.34 = 48,678,851.64 : x - Step 2: Convert to fraction form
85,346,424.12/117,778,799.34 = 48,678,851.64/x - Step 3: Cross multiply
85,346,424.12x = 117,778,799.34 × 48,678,851.64 - Step 4: Simplify right side
85,346,424.12x = 5,733,336,699,409,190 - Step 5: Solve for x
x = 5,733,336,699,409,190/85,346,424.12 - Step 6: Final answer
x = 67,177,233.94
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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.