Finding the Fourth Proportional to 4,847,988.81, 6,690,269.70 and 2,672,609.80
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Solution
The fourth proportional to 4,847,988.81, 6,690,269.70 and 2,672,609.80 is: 3,688,226.41
Step by Step Solution
- Step 1: Write the proportion equation
4,847,988.81 : 6,690,269.70 = 2,672,609.80 : x - Step 2: Convert to fraction form
4,847,988.81/6,690,269.70 = 2,672,609.80/x - Step 3: Cross multiply
4,847,988.81x = 6,690,269.70 × 2,672,609.80 - Step 4: Simplify right side
4,847,988.81x = 17,880,480,364,863.06 - Step 5: Solve for x
x = 17,880,480,364,863.06/4,847,988.81 - Step 6: Final answer
x = 3,688,226.41
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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.