Finding the Fourth Proportional to 16,388,628.48, 22,614,220.80 and 9,145,589.76
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Solution
The fourth proportional to 16,388,628.48, 22,614,220.80 and 9,145,589.76 is: 12,619,749.51
Step by Step Solution
- Step 1: Write the proportion equation
16,388,628.48 : 22,614,220.80 = 9,145,589.76 : x - Step 2: Convert to fraction form
16,388,628.48/22,614,220.80 = 9,145,589.76/x - Step 3: Cross multiply
16,388,628.48x = 22,614,220.80 × 9,145,589.76 - Step 4: Simplify right side
16,388,628.48x = 206,820,386,178,859 - Step 5: Solve for x
x = 206,820,386,178,859/16,388,628.48 - Step 6: Final answer
x = 12,619,749.51
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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.