Finding the Fourth Proportional to 39,927,628.49, 55,100,293.34 and 21,592,913.99
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Solution
The fourth proportional to 39,927,628.49, 55,100,293.34 and 21,592,913.99 is: 29,798,311.09
Step by Step Solution
- Step 1: Write the proportion equation
39,927,628.49 : 55,100,293.34 = 21,592,913.99 : x - Step 2: Convert to fraction form
39,927,628.49/55,100,293.34 = 21,592,913.99/x - Step 3: Cross multiply
39,927,628.49x = 55,100,293.34 × 21,592,913.99 - Step 4: Simplify right side
39,927,628.49x = 1,189,775,894,530,923.75 - Step 5: Solve for x
x = 1,189,775,894,530,923.75/39,927,628.49 - Step 6: Final answer
x = 29,798,311.09
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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.