Finding the Fourth Proportional to 21,448,802.30, 29,599,138.58 and 15,966,692.78
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Solution
The fourth proportional to 21,448,802.30, 29,599,138.58 and 15,966,692.78 is: 22,033,880.76
Step by Step Solution
- Step 1: Write the proportion equation
21,448,802.30 : 29,599,138.58 = 15,966,692.78 : x - Step 2: Convert to fraction form
21,448,802.30/29,599,138.58 = 15,966,692.78/x - Step 3: Cross multiply
21,448,802.30x = 29,599,138.58 × 15,966,692.78 - Step 4: Simplify right side
21,448,802.30x = 472,600,352,259,505.38 - Step 5: Solve for x
x = 472,600,352,259,505.38/21,448,802.30 - Step 6: Final answer
x = 22,033,880.76
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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.