Finding the Fourth Proportional to 199,330,000.40, 298,995,000.60 and 130,455,246.80
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Solution
The fourth proportional to 199,330,000.40, 298,995,000.60 and 130,455,246.80 is: 195,682,870.20
Step by Step Solution
- Step 1: Write the proportion equation
199,330,000.40 : 298,995,000.60 = 130,455,246.80 : x - Step 2: Convert to fraction form
199,330,000.40/298,995,000.60 = 130,455,246.80/x - Step 3: Cross multiply
199,330,000.40x = 298,995,000.60 × 130,455,246.80 - Step 4: Simplify right side
199,330,000.40x = 39,005,466,595,239,152 - Step 5: Solve for x
x = 39,005,466,595,239,152/199,330,000.40 - Step 6: Final answer
x = 195,682,870.20
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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.