Finding the Fourth Proportional to 804,816,206.80, 1,207,224,310.20 and 287,263,531.60
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Solution
The fourth proportional to 804,816,206.80, 1,207,224,310.20 and 287,263,531.60 is: 430,895,297.40
Step by Step Solution
- Step 1: Write the proportion equation
804,816,206.80 : 1,207,224,310.20 = 287,263,531.60 : x - Step 2: Convert to fraction form
804,816,206.80/1,207,224,310.20 = 287,263,531.60/x - Step 3: Cross multiply
804,816,206.80x = 1,207,224,310.20 × 287,263,531.60 - Step 4: Simplify right side
804,816,206.80x = 346,791,518,781,425,920 - Step 5: Solve for x
x = 346,791,518,781,425,920/804,816,206.80 - Step 6: Final answer
x = 430,895,297.40
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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.