Finding the Fourth Proportional to 7,958,681.76, 11,933,538.21 and 2,768,911.26
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Solution
The fourth proportional to 7,958,681.76, 11,933,538.21 and 2,768,911.26 is: 4,151,806.71
Step by Step Solution
- Step 1: Write the proportion equation
7,958,681.76 : 11,933,538.21 = 2,768,911.26 : x - Step 2: Convert to fraction form
7,958,681.76/11,933,538.21 = 2,768,911.26/x - Step 3: Cross multiply
7,958,681.76x = 11,933,538.21 × 2,768,911.26 - Step 4: Simplify right side
7,958,681.76x = 33,042,908,321,309.25 - Step 5: Solve for x
x = 33,042,908,321,309.25/7,958,681.76 - Step 6: Final answer
x = 4,151,806.71
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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.