Finding the Fourth Proportional to 21,735,840.66, 29,995,770.60 and 11,947,189.92
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Solution
The fourth proportional to 21,735,840.66, 29,995,770.60 and 11,947,189.92 is: 16,487,292.75
Step by Step Solution
- Step 1: Write the proportion equation
21,735,840.66 : 29,995,770.60 = 11,947,189.92 : x - Step 2: Convert to fraction form
21,735,840.66/29,995,770.60 = 11,947,189.92/x - Step 3: Cross multiply
21,735,840.66x = 29,995,770.60 × 11,947,189.92 - Step 4: Simplify right side
21,735,840.66x = 358,365,168,154,952.38 - Step 5: Solve for x
x = 358,365,168,154,952.38/21,735,840.66 - Step 6: Final answer
x = 16,487,292.75
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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.