Finding the Fourth Proportional to 6,866,434.20, 10,299,651.30 and 2,073,623.70
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Solution
The fourth proportional to 6,866,434.20, 10,299,651.30 and 2,073,623.70 is: 3,110,435.55
Step by Step Solution
- Step 1: Write the proportion equation
6,866,434.20 : 10,299,651.30 = 2,073,623.70 : x - Step 2: Convert to fraction form
6,866,434.20/10,299,651.30 = 2,073,623.70/x - Step 3: Cross multiply
6,866,434.20x = 10,299,651.30 × 2,073,623.70 - Step 4: Simplify right side
6,866,434.20x = 21,357,601,037,415.81 - Step 5: Solve for x
x = 21,357,601,037,415.81/6,866,434.20 - Step 6: Final answer
x = 3,110,435.55
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Double scale
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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.