Finding the Fourth Proportional to 691,516,439.99, 954,295,542.65 and 373,976,679.02
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Solution
The fourth proportional to 691,516,439.99, 954,295,542.65 and 373,976,679.02 is: 516,089,361.31
Step by Step Solution
- Step 1: Write the proportion equation
691,516,439.99 : 954,295,542.65 = 373,976,679.02 : x - Step 2: Convert to fraction form
691,516,439.99/954,295,542.65 = 373,976,679.02/x - Step 3: Cross multiply
691,516,439.99x = 954,295,542.65 × 373,976,679.02 - Step 4: Simplify right side
691,516,439.99x = 356,884,277,847,156,416 - Step 5: Solve for x
x = 356,884,277,847,156,416/691,516,439.99 - Step 6: Final answer
x = 516,089,361.31
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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.