Finding the Fourth Proportional to 19,890,041.76, 27,440,484.48 and 11,186,218.08
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Solution
The fourth proportional to 19,890,041.76, 27,440,484.48 and 11,186,218.08 is: 15,432,609.31
Step by Step Solution
- Step 1: Write the proportion equation
19,890,041.76 : 27,440,484.48 = 11,186,218.08 : x - Step 2: Convert to fraction form
19,890,041.76/27,440,484.48 = 11,186,218.08/x - Step 3: Cross multiply
19,890,041.76x = 27,440,484.48 × 11,186,218.08 - Step 4: Simplify right side
19,890,041.76x = 306,955,243,614,135.38 - Step 5: Solve for x
x = 306,955,243,614,135.38/19,890,041.76 - Step 6: Final answer
x = 15,432,609.31
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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.