Finding the Fourth Proportional to 18,128,511.70, 27,192,767.55 and 14,018,701.30
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Solution
The fourth proportional to 18,128,511.70, 27,192,767.55 and 14,018,701.30 is: 21,028,051.95
Step by Step Solution
- Step 1: Write the proportion equation
18,128,511.70 : 27,192,767.55 = 14,018,701.30 : x - Step 2: Convert to fraction form
18,128,511.70/27,192,767.55 = 14,018,701.30/x - Step 3: Cross multiply
18,128,511.70x = 27,192,767.55 × 14,018,701.30 - Step 4: Simplify right side
18,128,511.70x = 381,207,285,803,782.88 - Step 5: Solve for x
x = 381,207,285,803,782.88/18,128,511.70 - Step 6: Final answer
x = 21,028,051.95
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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.