Finding the Fourth Proportional to 14,393,564.98, 19,863,071.45 and 7,867,190.66
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Solution
The fourth proportional to 14,393,564.98, 19,863,071.45 and 7,867,190.66 is: 10,856,696.75
Step by Step Solution
- Step 1: Write the proportion equation
14,393,564.98 : 19,863,071.45 = 7,867,190.66 : x - Step 2: Convert to fraction form
14,393,564.98/19,863,071.45 = 7,867,190.66/x - Step 3: Cross multiply
14,393,564.98x = 19,863,071.45 × 7,867,190.66 - Step 4: Simplify right side
14,393,564.98x = 156,266,570,210,020.66 - Step 5: Solve for x
x = 156,266,570,210,020.66/14,393,564.98 - Step 6: Final answer
x = 10,856,696.75
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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.