Finding the Fourth Proportional to 5,743,726.47, 7,926,343.79 and 3,130,231.19
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Solution
The fourth proportional to 5,743,726.47, 7,926,343.79 and 3,130,231.19 is: 4,319,719.72
Step by Step Solution
- Step 1: Write the proportion equation
5,743,726.47 : 7,926,343.79 = 3,130,231.19 : x - Step 2: Convert to fraction form
5,743,726.47/7,926,343.79 = 3,130,231.19/x - Step 3: Cross multiply
5,743,726.47x = 7,926,343.79 × 3,130,231.19 - Step 4: Simplify right side
5,743,726.47x = 24,811,288,498,837.94 - Step 5: Solve for x
x = 24,811,288,498,837.94/5,743,726.47 - Step 6: Final answer
x = 4,319,719.72
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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.