Finding the Fourth Proportional to 712,159,893.68, 980,496,543.48 and 555,325,749.68
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Solution
The fourth proportional to 712,159,893.68, 980,496,543.48 and 555,325,749.68 is: 764,568,438.77
Step by Step Solution
- Step 1: Write the proportion equation
712,159,893.68 : 980,496,543.48 = 555,325,749.68 : x - Step 2: Convert to fraction form
712,159,893.68/980,496,543.48 = 555,325,749.68/x - Step 3: Cross multiply
712,159,893.68x = 980,496,543.48 × 555,325,749.68 - Step 4: Simplify right side
712,159,893.68x = 544,494,978,066,679,680 - Step 5: Solve for x
x = 544,494,978,066,679,680/712,159,893.68 - Step 6: Final answer
x = 764,568,438.77
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1.5x scale
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.