Finding the Fourth Proportional to 12,715,652.70, 19,073,479.05 and 4,193,934.30
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Solution
The fourth proportional to 12,715,652.70, 19,073,479.05 and 4,193,934.30 is: 6,290,901.45
Step by Step Solution
- Step 1: Write the proportion equation
12,715,652.70 : 19,073,479.05 = 4,193,934.30 : x - Step 2: Convert to fraction form
12,715,652.70/19,073,479.05 = 4,193,934.30/x - Step 3: Cross multiply
12,715,652.70x = 19,073,479.05 × 4,193,934.30 - Step 4: Simplify right side
12,715,652.70x = 79,992,918,008,126.42 - Step 5: Solve for x
x = 79,992,918,008,126.42/12,715,652.70 - Step 6: Final answer
x = 6,290,901.45
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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.