Finding the Fourth Proportional to 372,417,939.04, 513,952,699.92 and 207,405,508.96
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Solution
The fourth proportional to 372,417,939.04, 513,952,699.92 and 207,405,508.96 is: 286,228,481.86
Step by Step Solution
- Step 1: Write the proportion equation
372,417,939.04 : 513,952,699.92 = 207,405,508.96 : x - Step 2: Convert to fraction form
372,417,939.04/513,952,699.92 = 207,405,508.96/x - Step 3: Cross multiply
372,417,939.04x = 513,952,699.92 × 207,405,508.96 - Step 4: Simplify right side
372,417,939.04x = 106,596,621,308,273,760 - Step 5: Solve for x
x = 106,596,621,308,273,760/372,417,939.04 - Step 6: Final answer
x = 286,228,481.86
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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.