Finding the Fourth Proportional to 27,222,005.55, 37,567,218.20 and 15,621,690.99
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Solution
The fourth proportional to 27,222,005.55, 37,567,218.20 and 15,621,690.99 is: 21,558,421.66
Step by Step Solution
- Step 1: Write the proportion equation
27,222,005.55 : 37,567,218.20 = 15,621,690.99 : x - Step 2: Convert to fraction form
27,222,005.55/37,567,218.20 = 15,621,690.99/x - Step 3: Cross multiply
27,222,005.55x = 37,567,218.20 × 15,621,690.99 - Step 4: Simplify right side
27,222,005.55x = 586,863,473,996,195.62 - Step 5: Solve for x
x = 586,863,473,996,195.62/27,222,005.55 - Step 6: Final answer
x = 21,558,421.66
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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.