Finding the Fourth Proportional to 7,971,453.60, 11,958,346.80 and 2,579,186.40
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Solution
The fourth proportional to 7,971,453.60, 11,958,346.80 and 2,579,186.40 is: 3,869,156.99
Step by Step Solution
- Step 1: Write the proportion equation
7,971,453.60 : 11,958,346.80 = 2,579,186.40 : x - Step 2: Convert to fraction form
7,971,453.60/11,958,346.80 = 2,579,186.40/x - Step 3: Cross multiply
7,971,453.60x = 11,958,346.80 × 2,579,186.40 - Step 4: Simplify right side
7,971,453.60x = 30,842,805,433,043.52 - Step 5: Solve for x
x = 30,842,805,433,043.52/7,971,453.60 - Step 6: Final answer
x = 3,869,156.99
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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.