Finding the Fourth Proportional to 20,810,194.04, 28,716,122.13 and 12,435,901.99
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Solution
The fourth proportional to 20,810,194.04, 28,716,122.13 and 12,435,901.99 is: 17,160,382.05
Step by Step Solution
- Step 1: Write the proportion equation
20,810,194.04 : 28,716,122.13 = 12,435,901.99 : x - Step 2: Convert to fraction form
20,810,194.04/28,716,122.13 = 12,435,901.99/x - Step 3: Cross multiply
20,810,194.04x = 28,716,122.13 × 12,435,901.99 - Step 4: Simplify right side
20,810,194.04x = 357,110,880,223,125.12 - Step 5: Solve for x
x = 357,110,880,223,125.12/20,810,194.04 - Step 6: Final answer
x = 17,160,382.05
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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.