Finding the Fourth Proportional to 19,639,257.49, 27,103,016.21 and 10,937,430.09
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Solution
The fourth proportional to 19,639,257.49, 27,103,016.21 and 10,937,430.09 is: 15,094,121.82
Step by Step Solution
- Step 1: Write the proportion equation
19,639,257.49 : 27,103,016.21 = 10,937,430.09 : x - Step 2: Convert to fraction form
19,639,257.49/27,103,016.21 = 10,937,430.09/x - Step 3: Cross multiply
19,639,257.49x = 27,103,016.21 × 10,937,430.09 - Step 4: Simplify right side
19,639,257.49x = 296,437,344,970,324.56 - Step 5: Solve for x
x = 296,437,344,970,324.56/19,639,257.49 - Step 6: Final answer
x = 15,094,121.82
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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.