Finding the Fourth Proportional to 738,780,048.08, 1,019,268,914.28 and 425,507,990.48
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Solution
The fourth proportional to 738,780,048.08, 1,019,268,914.28 and 425,507,990.48 is: 587,058,446.69
Step by Step Solution
- Step 1: Write the proportion equation
738,780,048.08 : 1,019,268,914.28 = 425,507,990.48 : x - Step 2: Convert to fraction form
738,780,048.08/1,019,268,914.28 = 425,507,990.48/x - Step 3: Cross multiply
738,780,048.08x = 1,019,268,914.28 × 425,507,990.48 - Step 4: Simplify right side
738,780,048.08x = 433,707,067,474,014,208 - Step 5: Solve for x
x = 433,707,067,474,014,208/738,780,048.08 - Step 6: Final answer
x = 587,058,446.69
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Double scale
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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.