Finding the Fourth Proportional to 21,388,664.97, 29,516,372.16 and 11,599,106.22
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Solution
The fourth proportional to 21,388,664.97, 29,516,372.16 and 11,599,106.22 is: 16,006,774.45
Step by Step Solution
- Step 1: Write the proportion equation
21,388,664.97 : 29,516,372.16 = 11,599,106.22 : x - Step 2: Convert to fraction form
21,388,664.97/29,516,372.16 = 11,599,106.22/x - Step 3: Cross multiply
21,388,664.97x = 29,516,372.16 × 11,599,106.22 - Step 4: Simplify right side
21,388,664.97x = 342,363,535,912,890.88 - Step 5: Solve for x
x = 342,363,535,912,890.88/21,388,664.97 - Step 6: Final answer
x = 16,006,774.45
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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.