Finding the Fourth Proportional to 15,344,141.19, 21,174,810.66 and 8,468,623.23
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Solution
The fourth proportional to 15,344,141.19, 21,174,810.66 and 8,468,623.23 is: 11,686,642.56
Step by Step Solution
- Step 1: Write the proportion equation
15,344,141.19 : 21,174,810.66 = 8,468,623.23 : x - Step 2: Convert to fraction form
15,344,141.19/21,174,810.66 = 8,468,623.23/x - Step 3: Cross multiply
15,344,141.19x = 21,174,810.66 × 8,468,623.23 - Step 4: Simplify right side
15,344,141.19x = 179,321,493,446,127.66 - Step 5: Solve for x
x = 179,321,493,446,127.66/15,344,141.19 - Step 6: Final answer
x = 11,686,642.56
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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.