Finding the Fourth Proportional to 21,425,399.76, 29,576,098.08 and 14,465,505.54
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Solution
The fourth proportional to 21,425,399.76, 29,576,098.08 and 14,465,505.54 is: 19,968,505.39
Step by Step Solution
- Step 1: Write the proportion equation
21,425,399.76 : 29,576,098.08 = 14,465,505.54 : x - Step 2: Convert to fraction form
21,425,399.76/29,576,098.08 = 14,465,505.54/x - Step 3: Cross multiply
21,425,399.76x = 29,576,098.08 × 14,465,505.54 - Step 4: Simplify right side
21,425,399.76x = 427,833,210,627,823.31 - Step 5: Solve for x
x = 427,833,210,627,823.31/21,425,399.76 - Step 6: Final answer
x = 19,968,505.39
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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.