Finding the Fourth Proportional to 15,242,844.09, 21,035,146.14 and 8,273,523.21
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Solution
The fourth proportional to 15,242,844.09, 21,035,146.14 and 8,273,523.21 is: 11,417,473.59
Step by Step Solution
- Step 1: Write the proportion equation
15,242,844.09 : 21,035,146.14 = 8,273,523.21 : x - Step 2: Convert to fraction form
15,242,844.09/21,035,146.14 = 8,273,523.21/x - Step 3: Cross multiply
15,242,844.09x = 21,035,146.14 × 8,273,523.21 - Step 4: Simplify right side
15,242,844.09x = 174,034,769,815,031.91 - Step 5: Solve for x
x = 174,034,769,815,031.91/15,242,844.09 - Step 6: Final answer
x = 11,417,473.59
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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.