Finding the Fourth Proportional to 87,201,507.51, 120,338,014.28 and 48,043,284.26
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Solution
The fourth proportional to 87,201,507.51, 120,338,014.28 and 48,043,284.26 is: 66,299,695.86
Step by Step Solution
- Step 1: Write the proportion equation
87,201,507.51 : 120,338,014.28 = 48,043,284.26 : x - Step 2: Convert to fraction form
87,201,507.51/120,338,014.28 = 48,043,284.26/x - Step 3: Cross multiply
87,201,507.51x = 120,338,014.28 × 48,043,284.26 - Step 4: Simplify right side
87,201,507.51x = 5,781,433,426,496,073 - Step 5: Solve for x
x = 5,781,433,426,496,073/87,201,507.51 - Step 6: Final answer
x = 66,299,695.86
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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.