Finding the Fourth Proportional to 11,969,919.76, 16,518,594.16 and 6,813,612.84
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Solution
The fourth proportional to 11,969,919.76, 16,518,594.16 and 6,813,612.84 is: 9,402,845.43
Step by Step Solution
- Step 1: Write the proportion equation
11,969,919.76 : 16,518,594.16 = 6,813,612.84 : x - Step 2: Convert to fraction form
11,969,919.76/16,518,594.16 = 6,813,612.84/x - Step 3: Cross multiply
11,969,919.76x = 16,518,594.16 × 6,813,612.84 - Step 4: Simplify right side
11,969,919.76x = 112,551,305,267,325.02 - Step 5: Solve for x
x = 112,551,305,267,325.02/11,969,919.76 - Step 6: Final answer
x = 9,402,845.43
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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.