Finding the Fourth Proportional to 28,798,837.36, 39,742,399.28 and 15,746,105.28
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Solution
The fourth proportional to 28,798,837.36, 39,742,399.28 and 15,746,105.28 is: 21,729,627.32
Step by Step Solution
- Step 1: Write the proportion equation
28,798,837.36 : 39,742,399.28 = 15,746,105.28 : x - Step 2: Convert to fraction form
28,798,837.36/39,742,399.28 = 15,746,105.28/x - Step 3: Cross multiply
28,798,837.36x = 39,742,399.28 × 15,746,105.28 - Step 4: Simplify right side
28,798,837.36x = 625,788,003,142,676.25 - Step 5: Solve for x
x = 625,788,003,142,676.25/28,798,837.36 - Step 6: Final answer
x = 21,729,627.32
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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.