Finding the Fourth Proportional to 87,995,383.97, 121,427,972.98 and 48,837,187.24
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Solution
The fourth proportional to 87,995,383.97, 121,427,972.98 and 48,837,187.24 is: 67,392,178.83
Step by Step Solution
- Step 1: Write the proportion equation
87,995,383.97 : 121,427,972.98 = 48,837,187.24 : x - Step 2: Convert to fraction form
87,995,383.97/121,427,972.98 = 48,837,187.24/x - Step 3: Cross multiply
87,995,383.97x = 121,427,972.98 × 48,837,187.24 - Step 4: Simplify right side
87,995,383.97x = 5,930,200,652,172,258 - Step 5: Solve for x
x = 5,930,200,652,172,258/87,995,383.97 - Step 6: Final answer
x = 67,392,178.83
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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.