Finding the Fourth Proportional to 87,723,507.87, 121,053,837.92 and 48,023,427.78
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Solution
The fourth proportional to 87,723,507.87, 121,053,837.92 and 48,023,427.78 is: 66,269,810.50
Step by Step Solution
- Step 1: Write the proportion equation
87,723,507.87 : 121,053,837.92 = 48,023,427.78 : x - Step 2: Convert to fraction form
87,723,507.87/121,053,837.92 = 48,023,427.78/x - Step 3: Cross multiply
87,723,507.87x = 121,053,837.92 × 48,023,427.78 - Step 4: Simplify right side
87,723,507.87x = 5,813,420,242,602,829 - Step 5: Solve for x
x = 5,813,420,242,602,829/87,723,507.87 - Step 6: Final answer
x = 66,269,810.50
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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.