Finding the Fourth Proportional to 13,302,422.70, 19,930,014.45 and 12,452,117.10
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Solution
The fourth proportional to 13,302,422.70, 19,930,014.45 and 12,452,117.10 is: 18,656,065.84
Step by Step Solution
- Step 1: Write the proportion equation
13,302,422.70 : 19,930,014.45 = 12,452,117.10 : x - Step 2: Convert to fraction form
13,302,422.70/19,930,014.45 = 12,452,117.10/x - Step 3: Cross multiply
13,302,422.70x = 19,930,014.45 × 12,452,117.10 - Step 4: Simplify right side
13,302,422.70x = 248,170,873,736,092.09 - Step 5: Solve for x
x = 248,170,873,736,092.09/13,302,422.70 - Step 6: Final answer
x = 18,656,065.84
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.