Finding the Fourth Proportional to 21,576,566.05, 32,377,617.75 and 7,939,288.81
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Solution
The fourth proportional to 21,576,566.05, 32,377,617.75 and 7,939,288.81 is: 11,913,631.56
Step by Step Solution
- Step 1: Write the proportion equation
21,576,566.05 : 32,377,617.75 = 7,939,288.81 : x - Step 2: Convert to fraction form
21,576,566.05/32,377,617.75 = 7,939,288.81/x - Step 3: Cross multiply
21,576,566.05x = 32,377,617.75 × 7,939,288.81 - Step 4: Simplify right side
21,576,566.05x = 257,055,258,297,032.38 - Step 5: Solve for x
x = 257,055,258,297,032.38/21,576,566.05 - Step 6: Final answer
x = 11,913,631.56
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.