Finding the Fourth Proportional to 7,219,189.79, 10,828,243.39 and 2,101,658.99
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Solution
The fourth proportional to 7,219,189.79, 10,828,243.39 and 2,101,658.99 is: 3,152,330.90
Step by Step Solution
- Step 1: Write the proportion equation
7,219,189.79 : 10,828,243.39 = 2,101,658.99 : x - Step 2: Convert to fraction form
7,219,189.79/10,828,243.39 = 2,101,658.99/x - Step 3: Cross multiply
7,219,189.79x = 10,828,243.39 × 2,101,658.99 - Step 4: Simplify right side
7,219,189.79x = 22,757,275,066,501.58 - Step 5: Solve for x
x = 22,757,275,066,501.58/7,219,189.79 - Step 6: Final answer
x = 3,152,330.90
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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.