Finding the Fourth Proportional to 708,589,615.20, 1,062,884,422.80 and 637,163,944.80
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Solution
The fourth proportional to 708,589,615.20, 1,062,884,422.80 and 637,163,944.80 is: 955,745,917.20
Step by Step Solution
- Step 1: Write the proportion equation
708,589,615.20 : 1,062,884,422.80 = 637,163,944.80 : x - Step 2: Convert to fraction form
708,589,615.20/1,062,884,422.80 = 637,163,944.80/x - Step 3: Cross multiply
708,589,615.20x = 1,062,884,422.80 × 637,163,944.80 - Step 4: Simplify right side
708,589,615.20x = 677,231,631,697,719,040 - Step 5: Solve for x
x = 677,231,631,697,719,040/708,589,615.20 - Step 6: Final answer
x = 955,745,917.20
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Similar ratio
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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.