Finding the Fourth Proportional to 18,824,857.86, 28,249,231.91 and 8,042,239.81
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Solution
The fourth proportional to 18,824,857.86, 28,249,231.91 and 8,042,239.81 is: 12,068,462.84
Step by Step Solution
- Step 1: Write the proportion equation
18,824,857.86 : 28,249,231.91 = 8,042,239.81 : x - Step 2: Convert to fraction form
18,824,857.86/28,249,231.91 = 8,042,239.81/x - Step 3: Cross multiply
18,824,857.86x = 28,249,231.91 × 8,042,239.81 - Step 4: Simplify right side
18,824,857.86x = 227,187,097,468,524.31 - Step 5: Solve for x
x = 227,187,097,468,524.31/18,824,857.86 - Step 6: Final answer
x = 12,068,462.84
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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.