Finding the Fourth Proportional to 13,765,291.40, 18,996,587.16 and 7,885,974.44
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Solution
The fourth proportional to 13,765,291.40, 18,996,587.16 and 7,885,974.44 is: 10,882,922.59
Step by Step Solution
- Step 1: Write the proportion equation
13,765,291.40 : 18,996,587.16 = 7,885,974.44 : x - Step 2: Convert to fraction form
13,765,291.40/18,996,587.16 = 7,885,974.44/x - Step 3: Cross multiply
13,765,291.40x = 18,996,587.16 × 7,885,974.44 - Step 4: Simplify right side
13,765,291.40x = 149,806,600,790,992.19 - Step 5: Solve for x
x = 149,806,600,790,992.19/13,765,291.40 - Step 6: Final answer
x = 10,882,922.59
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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.