Finding the Fourth Proportional to 18,588,535.98, 27,893,717.16 and 7,805,007.60
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Solution
The fourth proportional to 18,588,535.98, 27,893,717.16 and 7,805,007.60 is: 11,712,093.66
Step by Step Solution
- Step 1: Write the proportion equation
18,588,535.98 : 27,893,717.16 = 7,805,007.60 : x - Step 2: Convert to fraction form
18,588,535.98/27,893,717.16 = 7,805,007.60/x - Step 3: Cross multiply
18,588,535.98x = 27,893,717.16 × 7,805,007.60 - Step 4: Simplify right side
18,588,535.98x = 217,710,674,426,050.41 - Step 5: Solve for x
x = 217,710,674,426,050.41/18,588,535.98 - Step 6: Final answer
x = 11,712,093.66
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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.