Finding the Fourth Proportional to 919,480,406.08, 1,269,605,943.42 and 740,295,105.88
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Solution
The fourth proportional to 919,480,406.08, 1,269,605,943.42 and 740,295,105.88 is: 1,022,189,336.60
Step by Step Solution
- Step 1: Write the proportion equation
919,480,406.08 : 1,269,605,943.42 = 740,295,105.88 : x - Step 2: Convert to fraction form
919,480,406.08/1,269,605,943.42 = 740,295,105.88/x - Step 3: Cross multiply
919,480,406.08x = 1,269,605,943.42 × 740,295,105.88 - Step 4: Simplify right side
919,480,406.08x = 939,883,066,309,986,176 - Step 5: Solve for x
x = 939,883,066,309,986,176/919,480,406.08 - Step 6: Final answer
x = 1,022,189,336.60
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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.