Finding the Fourth Proportional to 14,018,534.91, 19,345,830.09 and 8,221,497.75
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Solution
The fourth proportional to 14,018,534.91, 19,345,830.09 and 8,221,497.75 is: 11,345,814.64
Step by Step Solution
- Step 1: Write the proportion equation
14,018,534.91 : 19,345,830.09 = 8,221,497.75 : x - Step 2: Convert to fraction form
14,018,534.91/19,345,830.09 = 8,221,497.75/x - Step 3: Cross multiply
14,018,534.91x = 19,345,830.09 × 8,221,497.75 - Step 4: Simplify right side
14,018,534.91x = 159,051,698,556,817.28 - Step 5: Solve for x
x = 159,051,698,556,817.28/14,018,534.91 - Step 6: Final answer
x = 11,345,814.64
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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.