Finding the Fourth Proportional to 54,381,489.75, 81,572,235.54 and 18,479,697.75
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Solution
The fourth proportional to 54,381,489.75, 81,572,235.54 and 18,479,697.75 is: 27,719,546.93
Step by Step Solution
- Step 1: Write the proportion equation
54,381,489.75 : 81,572,235.54 = 18,479,697.75 : x - Step 2: Convert to fraction form
54,381,489.75/81,572,235.54 = 18,479,697.75/x - Step 3: Cross multiply
54,381,489.75x = 81,572,235.54 × 18,479,697.75 - Step 4: Simplify right side
54,381,489.75x = 1,507,430,257,501,709 - Step 5: Solve for x
x = 1,507,430,257,501,709/54,381,489.75 - Step 6: Final answer
x = 27,719,546.93
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.