Finding the Fourth Proportional to 20,460,303.68, 28,233,207.56 and 11,292,355.44
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Solution
The fourth proportional to 20,460,303.68, 28,233,207.56 and 11,292,355.44 is: 15,582,340.32
Step by Step Solution
- Step 1: Write the proportion equation
20,460,303.68 : 28,233,207.56 = 11,292,355.44 : x - Step 2: Convert to fraction form
20,460,303.68/28,233,207.56 = 11,292,355.44/x - Step 3: Cross multiply
20,460,303.68x = 28,233,207.56 × 11,292,355.44 - Step 4: Simplify right side
20,460,303.68x = 318,819,414,978,815.12 - Step 5: Solve for x
x = 318,819,414,978,815.12/20,460,303.68 - Step 6: Final answer
x = 15,582,340.32
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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.