Finding the Fourth Proportional to 20,817,606.97, 28,728,304.57 and 11,398,993.66
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Solution
The fourth proportional to 20,817,606.97, 28,728,304.57 and 11,398,993.66 is: 15,730,615.06
Step by Step Solution
- Step 1: Write the proportion equation
20,817,606.97 : 28,728,304.57 = 11,398,993.66 : x - Step 2: Convert to fraction form
20,817,606.97/28,728,304.57 = 11,398,993.66/x - Step 3: Cross multiply
20,817,606.97x = 28,728,304.57 × 11,398,993.66 - Step 4: Simplify right side
20,817,606.97x = 327,473,761,655,979.06 - Step 5: Solve for x
x = 327,473,761,655,979.06/20,817,606.97 - Step 6: Final answer
x = 15,730,615.06
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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.