Finding the Fourth Proportional to 29,035,468.71, 40,069,930.17 and 15,805,128.24
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Solution
The fourth proportional to 29,035,468.71, 40,069,930.17 and 15,805,128.24 is: 21,811,612.25
Step by Step Solution
- Step 1: Write the proportion equation
29,035,468.71 : 40,069,930.17 = 15,805,128.24 : x - Step 2: Convert to fraction form
29,035,468.71/40,069,930.17 = 15,805,128.24/x - Step 3: Cross multiply
29,035,468.71x = 40,069,930.17 × 15,805,128.24 - Step 4: Simplify right side
29,035,468.71x = 633,310,384,904,695 - Step 5: Solve for x
x = 633,310,384,904,695/29,035,468.71 - Step 6: Final answer
x = 21,811,612.25
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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.