Finding the Fourth Proportional to 21,347,339.24, 29,458,970.78 and 11,557,704.08
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Solution
The fourth proportional to 21,347,339.24, 29,458,970.78 and 11,557,704.08 is: 15,949,438.15
Step by Step Solution
- Step 1: Write the proportion equation
21,347,339.24 : 29,458,970.78 = 11,557,704.08 : x - Step 2: Convert to fraction form
21,347,339.24/29,458,970.78 = 11,557,704.08/x - Step 3: Cross multiply
21,347,339.24x = 29,458,970.78 × 11,557,704.08 - Step 4: Simplify right side
21,347,339.24x = 340,478,066,776,606.81 - Step 5: Solve for x
x = 340,478,066,776,606.81/21,347,339.24 - Step 6: Final answer
x = 15,949,438.15
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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.