Finding the Fourth Proportional to 81,564,065.63, 112,560,846.49 and 50,220,196.99
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Solution
The fourth proportional to 81,564,065.63, 112,560,846.49 and 50,220,196.99 is: 69,305,371.68
Step by Step Solution
- Step 1: Write the proportion equation
81,564,065.63 : 112,560,846.49 = 50,220,196.99 : x - Step 2: Convert to fraction form
81,564,065.63/112,560,846.49 = 50,220,196.99/x - Step 3: Cross multiply
81,564,065.63x = 112,560,846.49 × 50,220,196.99 - Step 4: Simplify right side
81,564,065.63x = 5,652,827,883,870,323 - Step 5: Solve for x
x = 5,652,827,883,870,323/81,564,065.63 - Step 6: Final answer
x = 69,305,371.68
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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.