Finding the Fourth Proportional to 7,238,090.70, 9,990,804.35 and 4,659,769.42
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Solution
The fourth proportional to 7,238,090.70, 9,990,804.35 and 4,659,769.42 is: 6,431,923.35
Step by Step Solution
- Step 1: Write the proportion equation
7,238,090.70 : 9,990,804.35 = 4,659,769.42 : x - Step 2: Convert to fraction form
7,238,090.70/9,990,804.35 = 4,659,769.42/x - Step 3: Cross multiply
7,238,090.70x = 9,990,804.35 × 4,659,769.42 - Step 4: Simplify right side
7,238,090.70x = 46,554,844,591,332.98 - Step 5: Solve for x
x = 46,554,844,591,332.98/7,238,090.70 - Step 6: Final answer
x = 6,431,923.35
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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.