Finding the Fourth Proportional to 20,112,707.23, 27,756,449.92 and 11,853,118.09
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Solution
The fourth proportional to 20,112,707.23, 27,756,449.92 and 11,853,118.09 is: 16,357,841.59
Step by Step Solution
- Step 1: Write the proportion equation
20,112,707.23 : 27,756,449.92 = 11,853,118.09 : x - Step 2: Convert to fraction form
20,112,707.23/27,756,449.92 = 11,853,118.09/x - Step 3: Cross multiply
20,112,707.23x = 27,756,449.92 × 11,853,118.09 - Step 4: Simplify right side
20,112,707.23x = 329,000,478,710,443.06 - Step 5: Solve for x
x = 329,000,478,710,443.06/20,112,707.23 - Step 6: Final answer
x = 16,357,841.59
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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.