Finding the Fourth Proportional to 15,962,833.48, 22,028,709.36 and 8,620,665.92
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Solution
The fourth proportional to 15,962,833.48, 22,028,709.36 and 8,620,665.92 is: 11,896,518.51
Step by Step Solution
- Step 1: Write the proportion equation
15,962,833.48 : 22,028,709.36 = 8,620,665.92 : x - Step 2: Convert to fraction form
15,962,833.48/22,028,709.36 = 8,620,665.92/x - Step 3: Cross multiply
15,962,833.48x = 22,028,709.36 × 8,620,665.92 - Step 4: Simplify right side
15,962,833.48x = 189,902,144,041,337 - Step 5: Solve for x
x = 189,902,144,041,337/15,962,833.48 - Step 6: Final answer
x = 11,896,518.51
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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.