Finding the Fourth Proportional to 21,445,541.76, 29,595,147.48 and 11,655,983.01
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Solution
The fourth proportional to 21,445,541.76, 29,595,147.48 and 11,655,983.01 is: 16,085,419.53
Step by Step Solution
- Step 1: Write the proportion equation
21,445,541.76 : 29,595,147.48 = 11,655,983.01 : x - Step 2: Convert to fraction form
21,445,541.76/29,595,147.48 = 11,655,983.01/x - Step 3: Cross multiply
21,445,541.76x = 29,595,147.48 × 11,655,983.01 - Step 4: Simplify right side
21,445,541.76x = 344,960,536,205,324.31 - Step 5: Solve for x
x = 344,960,536,205,324.31/21,445,541.76 - Step 6: Final answer
x = 16,085,419.53
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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.