Finding the Fourth Proportional to 13,202,909.13, 18,219,743.18 and 7,321,594.23
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Solution
The fourth proportional to 13,202,909.13, 18,219,743.18 and 7,321,594.23 is: 10,103,649.52
Step by Step Solution
- Step 1: Write the proportion equation
13,202,909.13 : 18,219,743.18 = 7,321,594.23 : x - Step 2: Convert to fraction form
13,202,909.13/18,219,743.18 = 7,321,594.23/x - Step 3: Cross multiply
13,202,909.13x = 18,219,743.18 × 7,321,594.23 - Step 4: Simplify right side
13,202,909.13x = 133,397,566,502,161.89 - Step 5: Solve for x
x = 133,397,566,502,161.89/13,202,909.13 - Step 6: Final answer
x = 10,103,649.52
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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.