Finding the Fourth Proportional to 14,979,946.68, 20,693,489.58 and 11,920,246.20
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Solution
The fourth proportional to 14,979,946.68, 20,693,489.58 and 11,920,246.20 is: 16,466,780.28
Step by Step Solution
- Step 1: Write the proportion equation
14,979,946.68 : 20,693,489.58 = 11,920,246.20 : x - Step 2: Convert to fraction form
14,979,946.68/20,693,489.58 = 11,920,246.20/x - Step 3: Cross multiply
14,979,946.68x = 20,693,489.58 × 11,920,246.20 - Step 4: Simplify right side
14,979,946.68x = 246,671,490,530,734.56 - Step 5: Solve for x
x = 246,671,490,530,734.56/14,979,946.68 - Step 6: Final answer
x = 16,466,780.28
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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.