Finding the Fourth Proportional to 87,253,918.16, 120,415,794.36 and 48,095,606.72
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Solution
The fourth proportional to 87,253,918.16, 120,415,794.36 and 48,095,606.72 is: 66,374,906.83
Step by Step Solution
- Step 1: Write the proportion equation
87,253,918.16 : 120,415,794.36 = 48,095,606.72 : x - Step 2: Convert to fraction form
87,253,918.16/120,415,794.36 = 48,095,606.72/x - Step 3: Cross multiply
87,253,918.16x = 120,415,794.36 × 48,095,606.72 - Step 4: Simplify right side
87,253,918.16x = 5,791,470,688,414,954 - Step 5: Solve for x
x = 5,791,470,688,414,954/87,253,918.16 - Step 6: Final answer
x = 66,374,906.83
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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.