Finding the Fourth Proportional to 12,420,328.39, 17,146,238.56 and 9,623,177.26
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Solution
The fourth proportional to 12,420,328.39, 17,146,238.56 and 9,623,177.26 is: 13,284,777.00
Step by Step Solution
- Step 1: Write the proportion equation
12,420,328.39 : 17,146,238.56 = 9,623,177.26 : x - Step 2: Convert to fraction form
12,420,328.39/17,146,238.56 = 9,623,177.26/x - Step 3: Cross multiply
12,420,328.39x = 17,146,238.56 × 9,623,177.26 - Step 4: Simplify right side
12,420,328.39x = 165,001,292,938,203.62 - Step 5: Solve for x
x = 165,001,292,938,203.62/12,420,328.39 - Step 6: Final answer
x = 13,284,777.00
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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.