Finding the Fourth Proportional to 199,701,246.40, 299,551,869.60 and 130,826,492.80
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Solution
The fourth proportional to 199,701,246.40, 299,551,869.60 and 130,826,492.80 is: 196,239,739.20
Step by Step Solution
- Step 1: Write the proportion equation
199,701,246.40 : 299,551,869.60 = 130,826,492.80 : x - Step 2: Convert to fraction form
199,701,246.40/299,551,869.60 = 130,826,492.80/x - Step 3: Cross multiply
199,701,246.40x = 299,551,869.60 × 130,826,492.80 - Step 4: Simplify right side
199,701,246.40x = 39,189,320,511,450,944 - Step 5: Solve for x
x = 39,189,320,511,450,944/199,701,246.40 - Step 6: Final answer
x = 196,239,739.20
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.