Finding the Fourth Proportional to 19,727,866.99, 27,223,600.13 and 10,786,813.21
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Solution
The fourth proportional to 19,727,866.99, 27,223,600.13 and 10,786,813.21 is: 14,885,334.01
Step by Step Solution
- Step 1: Write the proportion equation
19,727,866.99 : 27,223,600.13 = 10,786,813.21 : x - Step 2: Convert to fraction form
19,727,866.99/27,223,600.13 = 10,786,813.21/x - Step 3: Cross multiply
19,727,866.99x = 27,223,600.13 × 10,786,813.21 - Step 4: Simplify right side
19,727,866.99x = 293,655,889,450,034.94 - Step 5: Solve for x
x = 293,655,889,450,034.94/19,727,866.99 - Step 6: Final answer
x = 14,885,334.01
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1.5x scale
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.