Finding the Fourth Proportional to 13,348,023.21, 18,420,768.09 and 7,546,458.96
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Solution
The fourth proportional to 13,348,023.21, 18,420,768.09 and 7,546,458.96 is: 10,414,393.82
Step by Step Solution
- Step 1: Write the proportion equation
13,348,023.21 : 18,420,768.09 = 7,546,458.96 : x - Step 2: Convert to fraction form
13,348,023.21/18,420,768.09 = 7,546,458.96/x - Step 3: Cross multiply
13,348,023.21x = 18,420,768.09 × 7,546,458.96 - Step 4: Simplify right side
13,348,023.21x = 139,011,570,402,862.58 - Step 5: Solve for x
x = 139,011,570,402,862.58/13,348,023.21 - Step 6: Final answer
x = 10,414,393.82
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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.