Finding the Fourth Proportional to 21,049,386.08, 29,048,152.40 and 11,391,594.08
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Solution
The fourth proportional to 21,049,386.08, 29,048,152.40 and 11,391,594.08 is: 15,720,399.62
Step by Step Solution
- Step 1: Write the proportion equation
21,049,386.08 : 29,048,152.40 = 11,391,594.08 : x - Step 2: Convert to fraction form
21,049,386.08/29,048,152.40 = 11,391,594.08/x - Step 3: Cross multiply
21,049,386.08x = 29,048,152.40 × 11,391,594.08 - Step 4: Simplify right side
21,049,386.08x = 330,904,760,914,777.75 - Step 5: Solve for x
x = 330,904,760,914,777.75/21,049,386.08 - Step 6: Final answer
x = 15,720,399.62
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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.