Finding the Fourth Proportional to 14,219,156.48, 19,621,950.72 and 8,109,553.28
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Solution
The fourth proportional to 14,219,156.48, 19,621,950.72 and 8,109,553.28 is: 11,190,906.79
Step by Step Solution
- Step 1: Write the proportion equation
14,219,156.48 : 19,621,950.72 = 8,109,553.28 : x - Step 2: Convert to fraction form
14,219,156.48/19,621,950.72 = 8,109,553.28/x - Step 3: Cross multiply
14,219,156.48x = 19,621,950.72 × 8,109,553.28 - Step 4: Simplify right side
14,219,156.48x = 159,125,254,821,374.34 - Step 5: Solve for x
x = 159,125,254,821,374.34/14,219,156.48 - Step 6: Final answer
x = 11,190,906.79
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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.