Finding the Fourth Proportional to 87,822,671.22, 121,155,542.36 and 53,004,231.54
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Solution
The fourth proportional to 87,822,671.22, 121,155,542.36 and 53,004,231.54 is: 73,121,852.60
Step by Step Solution
- Step 1: Write the proportion equation
87,822,671.22 : 121,155,542.36 = 53,004,231.54 : x - Step 2: Convert to fraction form
87,822,671.22/121,155,542.36 = 53,004,231.54/x - Step 3: Cross multiply
87,822,671.22x = 121,155,542.36 × 53,004,231.54 - Step 4: Simplify right side
87,822,671.22x = 6,421,756,419,603,718 - Step 5: Solve for x
x = 6,421,756,419,603,718/87,822,671.22 - Step 6: Final answer
x = 73,121,852.60
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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.