Finding the Fourth Proportional to 12,143,326.37, 18,296,918.98 and 10,031,657.99
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Solution
The fourth proportional to 12,143,326.37, 18,296,918.98 and 10,031,657.99 is: 15,115,169.26
Step by Step Solution
- Step 1: Write the proportion equation
12,143,326.37 : 18,296,918.98 = 10,031,657.99 : x - Step 2: Convert to fraction form
12,143,326.37/18,296,918.98 = 10,031,657.99/x - Step 3: Cross multiply
12,143,326.37x = 18,296,918.98 × 10,031,657.99 - Step 4: Simplify right side
12,143,326.37x = 183,548,433,361,535.88 - Step 5: Solve for x
x = 183,548,433,361,535.88/12,143,326.37 - Step 6: Final answer
x = 15,115,169.26
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.