Finding the Fourth Proportional to 5,320,633.95, 7,980,950.99 and 1,277,121.76
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Solution
The fourth proportional to 5,320,633.95, 7,980,950.99 and 1,277,121.76 is: 1,915,682.66
Step by Step Solution
- Step 1: Write the proportion equation
5,320,633.95 : 7,980,950.99 = 1,277,121.76 : x - Step 2: Convert to fraction form
5,320,633.95/7,980,950.99 = 1,277,121.76/x - Step 3: Cross multiply
5,320,633.95x = 7,980,950.99 × 1,277,121.76 - Step 4: Simplify right side
5,320,633.95x = 10,192,646,174,822.54 - Step 5: Solve for x
x = 10,192,646,174,822.54/5,320,633.95 - Step 6: Final answer
x = 1,915,682.66
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1.5x scale
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.