Finding the Fourth Proportional to 20,900,246.13, 28,842,406.50 and 11,607,814.53
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Solution
The fourth proportional to 20,900,246.13, 28,842,406.50 and 11,607,814.53 is: 16,018,821.17
Step by Step Solution
- Step 1: Write the proportion equation
20,900,246.13 : 28,842,406.50 = 11,607,814.53 : x - Step 2: Convert to fraction form
20,900,246.13/28,842,406.50 = 11,607,814.53/x - Step 3: Cross multiply
20,900,246.13x = 28,842,406.50 × 11,607,814.53 - Step 4: Simplify right side
20,900,246.13x = 334,797,305,250,866.44 - Step 5: Solve for x
x = 334,797,305,250,866.44/20,900,246.13 - Step 6: Final answer
x = 16,018,821.17
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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.